Given the pay rate and hours worked, determine the gross earnings.
pay rate: 6.75 hours: 39.5

Given the parent function of [tex]f(x)=x^4[/tex], what change will occur when the function is changed to [tex]f(\frac{1}{2} x)[/tex]?

Nine more than four times a number is the same as one less than twice the number. find the number?

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?