Answer:
$936
Step-by-step explanation:
Simple interest is money you can earn by initially investing some money (a.k.a the principal). In return, a percentage (a.k.a the interest) of the initial money invested is added to the principal, this is what makes your initial investment grow.
The equation for simple interest is:
I = P x r x t
P = Principal, $2600
r = interest rate, 12%
t = time involved, 3 years
Fill in the values:
2600 × 0.12 × 3 = $936.00
3.) The answer is 120 times. Because for one month, the stoplight was red for 10 times. So 12 × 10 = 120 times
4.) Answer: 72. Because 12 × 6 = 72.
5.) Answer: 48. Because 12 × 4 = 48.
Hope it helps. ^_^
