Question

Need help



Maria invested $450 in a savings account and earned $126 in interest at the end of 7 years.



What was the interest rate?



A.
3.5%


B.
4%


C.
4.5%


D.
5%

4%

Answer 1

@UnkleRhaukus

Answer 2

I got 4%

Answer 3

hi chat noir!!I remember you :D

Answer 4

How're you doing right meow? :3

Answer 5

Well! ^_^

Answer 6

That's purrfect~ ♪ ^_^

Answer 7

You're right
It's B

Answer 8

You are right!
126 = 450 × r × 7
126 = 3150r
r = 126/3150
r = 0.04 x 100% = 4%

R is rate which you need to find.

Answer 9

Thanks you two!