250y = 12.5
y=12.5/250 = 0.05
y = 5%
The question becomes: what is 5% of 20? \(20 \times 0.05 = 1\)
A student buys an algebra textbook for 11.11USD, a philosophy textbook for 15.83USD, and a dictionary for \(\$10.31\). What is the total cost of the books?
A blouse normally costs \(\$18.50\). How much money is saved if the blouse is purchased at a 20% discount?
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 50% off." If Frank buys two shirts, each with a regular price of \(\$49\), how much money will he save?