Mila has a lovalty card good for a discount at her local grocery store. The item she wants to buy is priced at $io, before discount and tax. After the discount, and before
tax, the price is $8.40. Find the percent discount.

Anne is twice as old as bill, and bill is 3 years older than christie. the sum of anne s and christie s ages equal 72. find their age difference.?

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?