A store has two different brands of laundry detergent. Brand A can do 105 loads of laundry and costs $21.99. Brand B does 80 loads of laundry and costs $17.99. Which laundry detergent is the better buy and what is that detergent's unit price? Answers:
A. Brand A $0.20
B. Brand A $0.21
C. Brand B $0.22
D. Brand B $0.23

Max and brenda went shopping for a table. they found one that they like. the cost is $150.00 but there is a 25% off sale and they need to add 8% to the local sales tax. max multiplied 150 x 0.75 to get the cost. he then multiplied the discounted amount by 1.08 to find the total cost. what was max’s total cost? brenda multiplied 150 x 25% and subtracted that amount from 150. she then multiplied the discounted price by 8%. she added the discounted price and the tax amount together to get the total cost. what was brenda’s total cost? how come the answers are the same?