13 points!
dawnie deposited $350 in a savings account earning 2% interest over 3 years.
what was the total amount of interest earned at the end of 3 years?
a.
$420
b.
$210
c.
$42
d.
$21

The answer is D. 21 dollars is how much dawnie makes.

work: i = p x r x t

P is the principal amount, $350.00.

r is the interest rate, 2% per year, or in decimal form, 2/100=0.02.

t is the time involved, 3year(s) time periods.

So, t is 3year time periods.

To get the interest multiply 350 × 0.02 × 3
                                    .  .
The interest is: $21.00 ω

So to find the interest, the formula is I= Principal × Rate × Time (year)
Change 2% to 0.02
Plug the numbers into the variable, $350 × 0.02 × 3 = $21, so the answer was D.$21.