Arnies car used 100 cups of gasoline during a drive he paid 3.12 per gallon for gas how much did the gas cost

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

Which of the following is an equation of a line parallel to the equation y=4x+1?