Can someone check my answers please? :)
QUESTION 9
Katie earned $1200 in 8 years on an investment at a 6% annual simple interest rate. How much was Katie’s investment?
$945
$2500
$4500
$9000
5 points
QUESTION 10
Glenn invested $15,000 at 3% interest compounded annually.
How much interest will Glenn earn in 4 years?
$2837.25
$16,882.63 *
$20,837.25
$1882.63
5 points
QUESTION 11
A sweater originally costing $80 is now on sale for $60. Determine the percent decrease.
25% *
20%
30%
15%
5 points
QUESTION 12
The__________ method is a way of solving a system of equations using addition or subtraction to eliminate a variable.
linear combination *
substitution
empty set
like term
Answers marked with * are my answers