Tanya drove 312 hours and used 13 tanks of gas. for how long could tanya drive using 12 tanks of gas? enter your answer as a mixed number in simplest form in the box

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

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?

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?