Question

Correct answers only!

Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.

Answer 1

$39

Explanation:

Using the given formula :

I = P × R × T

I = 30 × 10/100 × 3

I = $9

She have = 30 + 9 = $39

Answer 2

She will have $39 and the interest for those years is 9$

Explanation:

i = prt

i = ($30)(.1)(3)

i = $9