Can someone me its for homeworkkk

Tickets to an orchestra concert cost $25.50 apiece plus a & 2.50 handling fee for each order. if jamal spent $79 how many ticket did he purchase

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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?