At the end of 4 years, how much money would you have in total if you invested $300 and earned 4.5% simple interest? a. $313.50 b. $318 c. $327.75 d. $354

The account balance for principal amount P accumulating simple interest at the rate r over time period t is given by ...

... A = P(1 + rt)

Fill in the given numbers and do the arithmetic.

... A = 300·(1 + 0.045·4) = 354

The appropriate choice is: D. $354

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length