Choose all of the following equivalent exponential function(s) to f(x)=(5/2)^−x f(x)= -(5/2)^-x
f(x)= -(2/5)^x
f(x)= x^-2/5
f(x)= (5/2)^x
f(x)= (2/5)^x
f(x)= 2^-x/5

Which of the following could be the graph of the equation y = -2x + 5

Option 1: $30 an hour plus a nonrefundable deposit of $50 option 2: $20 an hour plus a nonrefundable deposit of $75 kyle is renting a jetski for the day. if he can rent the jetski in one hour increments, what is the minimum number of hours must he rent the jetski for option 2 to be a better deal then option 1?

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need