The height , h , in feet of an object above the ground is given by h(t)=-16t^2+64t+190 , where t is the time in seconds . what is the height of the object after 2 seconds

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.