Question 7 • TX-Pre-Calculus
A 5% raise on a first-year salary of 400 thousand is 0.05 × 400 = 20 thousand. Adding the raise to the original salary gives 400 + (0.05)400, or equivalently multiplying by 1.05 gives 400(1.05) = 420 thousand. Choice B adds 105% of the salary to the original amount, and choice D adds two raises without including the original salary.
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