Question 7 • Financial Math
The first $50,000 earns 3.5%, which is 0.035 as a decimal. Sales above $50,000 are $81,500 − $50,000 = $31,500, and that amount earns 6.5%, or 0.065. So total earnings are represented by 0.035(50,000) + 0.065(31,500), choice B.
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