Brett fills up his car at a gas station selling gas for $2.10 per gallon. it takes 6 1/2 gallons of gas to fill up the car. how much does brett spend on gas?

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?

Grandpa ernie is shrinking! over the past 4 years his height decreased by a total of 2.4 cm.it decreased by the same amount each year. what was the change in grandpa ernie's height each year