Evaluate the integral by making the given substitution. (use c for the constant of integration. remember to use absolute values where appropriate.) ∫(x^4 / (x^5 − 4)) dx , u = x^5 − 4

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

Acircle has a circumference of 28.36 units what is the diameter of the circle

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?