Answers by Riffnl
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Answers by Riffnl

Answers by Riffnl
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A maths teacher bought 40 calculators at $8.20 each and a number of other calculators costing $2.95 each.In all she spent$387. How many of the cheaper calculators did she buy?
answered Dec 18, 2019
4 votes
25.8k views
The figure shows an energy pyramid fir an ecosystem. What happens to the amount of energy in the pyramid as it moves up through the different levels?
answered Oct 10, 2019
2 votes
1.2k views
Please help!!!! It’s #14 and explain and show me how to do it please
answered Aug 24, 2019
2 votes
157k views
Why would slaves revolt? 1.because they need to organized 2.because the emancipation societies promoted it. 3.because they wanted to end practice 4.because they were trying to return to africa
answered Aug 23, 2019
4 votes
53.7k views
What is 2/5³? Please put it in simplest form.
answered Jun 25, 2019
6 votes
185k views
Vaccines are not effective against trypanosomiasis because
answered Aug 11, 2018
4 votes
14.9k views
How do you think having openness in business would change society?
answered Jul 23, 2018
5 votes
97.2k views
an arch way is modeled by the equation y=-2x^2+8x. A rod is to be placed across the archway at an angle definded by the equation x-2.23y+10.34=0. If the rod is attached to the archway at points A and B,
answered Apr 25, 2018
4 votes
36.0k views
Great Mountain Park: All day pass: 20.25 Mountain coaster: 4.50 Tilt a Loop: 4.75 Water coaster: 4.00 Fast drop: 3.50 Swing a Ling: 2.75 Merry go Around: 2.50. Prices at the Great Mountain Park are shown
answered Apr 12, 2018
5 votes
129k views
A historian is writing a paper on the idea of the divine right of kings in Europe during the Middle Ages. She reads a speech by a bishop in the Middle Ages claiming that kings were appointed by God to
answered Feb 27, 2018
6 votes
15.2k views
Which of the following is a factor of 8x2 + 21x + 10? 2x + 5 4x + 5 x + 2 None of the above
answered Jan 18, 2018
4 votes
84.8k views
Individuals, ____ societies, and the world change through times of conflict and cooperation Four distinct characteristics of any society are: religion culture economics science change politics According
answered Jul 1, 2017
4 votes
49.4k views
Imagine you are a candidate for president. Your campaign manager tells you that Social Security reform is the “third rail of politics” and is considered an issue to be avoided. Why would your campaign
answered Jan 15, 2017
3 votes
112k views
Mass measures the amount of matter in an object the weight of an object gravity's effects on an object the size of an object
answered Jan 13, 2017
0 votes
49.5k views
What did the Camp David Accords achieve? A. a peace treaty between Egypt and Israel B. a peace treaty between the United States and the Soviet Union C. a trade agreement with Canada and Mexico D. the return
answered Nov 13, 2016
5 votes
112k views
How many times greater is 1 mile than 1 foot
answered May 4, 2016
4 votes
1.6k views
Why was Julius Caesar crossing the Rubicon an important event?
answered Mar 29, 2015
4 votes
109k views
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