Question

Charis invested 140. She earned a simple interest of 3 per year on the initial investment. if no money was added or removed from the investment, what was the amount of interest Charis received at the end if two years? ​

Answer 1

I= Prt

the principal or investment (p) is !40

the rate (r) is 3% in a decimal which is .03

time (t) is 2

140 x .03 x 2= 8.4

at the end of two year Charis earned $8.40 in interest.