Carl has 4/5 of a tank of fuel in his car. he uses 1/10 of tanks per day. how many days will his fuel last?

Solve the system of equations. y= 2x y= x^2 - 15

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?

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?