## Last year a math textbook cost \$54 what is this years cost, Mathematics

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Last year, a math textbook cost \$54. This year the cost is 107 percent of what it was last year. What is this year's cost?

a. \$59.78
b. \$57.78
c. \$61.00
d. \$50.22

To ?nd out 107% of \$54, multiply \$54 through the decimal equivalent of 107% (1.07); \$54 × 1.07 = \$57.78. If you chose d, you found what the cost of the book would be if it was 7% LESS next year.

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