Jenna sells Lemonade for $10 per glass. She offers a 20% discount. The price is recalculated then she offers an additional 10% discount. Aidan wants to match her deal by offering a
single discount...

currently you have $80 and your sister has 145.you decide to save $6 of your allowance each week and your sister spends her whole allowance plus an extra $7 each week. How long will it be before you...

A box contains $6.70 in nickels, dimes, and quarters. There are 39 coins in all, and the sum of the numbers of nickels and dimes is 3 less than the number of quarters. How many coins of each kind...

Many e-commerce businesses use PayPal to perform payment processing for them. For certain transactions, merchants are charged a fee of 2.4% of the selling price of the item plus $0.40. What would...