all you do is multiply the -9 by the numbers in the parenthesis. If you are multiplying two negatives or two positives then the outcome if positive. If you multiply a positive and a negative the outcome is negative.

5 0

3 years ago

Maria put $500 into a savings account. She made no more deposits or withdrawals. The account earns 2% simple interest per year.

choli [55]

Hello! The formula for simple interest is prt. That means multiply the principal (initial amount) by the rate (simple interest rate) by time (usually in months or years). $500 is the principal and 2% is the interest rate. Multiply both numbers. 500 * 2% (0.02) is 10. $10 is the simple interest given out per year. We're looking for the total for 5 years. 10 * 5 is 50. Add the amount of interest to the principal. 500 + 50 is 550. There. Maria will have $550 in her savings account after 5 years. The answer is C: 550.

3 0

3 years ago