From 43 minutes to 28 minutes

what is this percent change

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

If i purchase a product for $79.99 and two accessories for 9.99 and 7.00 how much will i owe after taxes applies 8.75%