Question

1. Diane's has $200 to spend on the basic phone service costs $17.89 per month. If Diane pays for 11 months how much money will she have left over?

2.To lay a drainage system it costs $120 for every 50 feet. Write an equation to determine the cost of laying 300 feet of drainage.
3.Solve: 12 = -4h + 7 +11h

Which of the following would be an appropriate first step to take in solving for "h"?

Group of answer choices

adding 7 to both sides

adding 12 to both sides

combining (-4h) and (11h)

multiplying both side by 4

Answer 1

1: $3.21.

2: 50x+120=300

3: h=5/7/ first step would be to adding 7 to both sides.

Explanation:

for the 3rd:

1. you're combining like terms so you have to subtract 7 from both sides
2. you gotta subtract 12-7 so that gives you 5=7h+7-7 and the subtract the 7-7, and that will give you 0 so you have 5=7h left.
3. divide both sides by the same terms (7), so you'll have 5/7 and 7h/7
4. so 7/7=0 so you drop that and just have the h.
5. now switch sides with the virable and the fraction you still have (5/7)
6. you now have h=5/7.

Answer 2

$3.21

Explanation: