To get the 10% discount, a shopper must spend no less than $500. Use d to represent the spending (in dollars) of a shopper who gets the discount.

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

How can you check that you have correctly converted frequencies to relative frequencies?