In 1998 Bob earned 2800 In 1999 his earnings increased by 15

In 1998, Bob earned $2800. In 1999, his earnings increased by 15%. In 2000, his earnings decreased by 15% from his earnings in 1999. What were his earnings in 2000? A $2800.00 B $2380.98 C $2381.15 D $2737.00 E None of these 16. Londa is paid a 15% commission on all sales, plus $8.50 per hour. One week, her sales were $6821.29. How many hours did she work to earn $1371.69? A 68.3 B 41.0 C 120.4 D 28.2 E None of these 17-18. Quantitative Comparison A if the quantity in Column A is greater B if the quantity in Column B is greater C if the two quantities are equal D if the relationship cannot be determined from the information given Column A Column B

Solution

15) bob earnings in 1998 = 2800$

increased by 15%

bob earnings in 1999 = 2800*(1+(15/100))

decreased by 15%

bob earnings in 2000 = 2800*(1+(15/100))*(1-(15/100))

bob earnings in 2000 = 2800*(1.15)*(0.85)

bob earnings in 2000 = 2737$