The pressure of a scuba tank should be within 500 pounds per square inch (psi) of 2500 psi. write the range of optimum pressures.

You got a job selling magazines door-to-door. you are paid $100 per day plus $1.50 for each magazine you sell. which recursive formula models this situation?

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?

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?