Simple interest=pxrxt
if the principal is $200 and the interest rate is 4 percent, what is the simple interest earned in one year

Simple interest earned = $8

Step-by-step explanation:

A = P(1 + rt)

Where 'P' is the principal, 'r' is the rate and 't' is time.

A = $200(1 + 0.04(1)) = $208

Interest earned = Amount after the 1 year minus Principal

i.e Interest = $208 - $200 = $8

-2

7 - 9 = -2

reversed:

-2 + 9 = 7