Keecia joins a gym. She pays a membership fee of 75 point 0 0 dollars and 49 point 9 9 dollars per month for the first 8 months. The gym increases its rates, and she must pay 59 point 9 9 dollars per month for the next 4 months. Which numerical expression can be used to find the total cost of the first year of Keecia’s gym membership?
Answer
A
75 plus 49 point 9 9 plus 59 point 9 9
B
75 minus 8 times 49 point 9 9 plus 4 times 59 point 9 9
C
75 plus 8 times 49 point 9 9 plus 4 times 59 point 9 9
D
75 plus open paren 8 plus 4 close paren times open paren 49 point 9 9 plus 59 point 9 9 close paren
Explanation
Add the $75 membership fee to the monthly costs. The first rate applies for 8 months, so that cost is 8 × $49.99; the increased rate applies for the next 4 months, costing 4 × $59.99. Thus, 75 + 8 × 49.99 + 4 × 59.99 is the expression for the total first-year cost.
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