The equation that models the depreciation of a car is y=28158(0.815)x. What is the percent of depreciation each year? Group of answer choices

81.5%

65.3%

18.5%

8.15%

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.