I need the rest please help :/

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Who long does it take to drive 150 miles at 45 miles per hour

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.