Answer
b. (0.035)(50,000) + (0.065)(31,500)
Explanation
3.5% 0f 50,000 = 3.5/100 × 50,000
= 0.035 × 50,000
= 1,750
6.5% × (81,500 - 50,000) = 6.5/100 ×31,500
= 0.065 × 31500
= 2,047.50
Total earning = (0.035 × 50,000 + 0.065 × 31500)
= 1,570 + 2,047.50
= $3,797.50