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

Can't gugys answer the ratio question. this is urgent the plans of a building is drawn toward scale of 1: 1000. kfc the foyer on the plans measures 62mm by 54mm, how large is the foyer in real life?

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

Factor the expression using gcf 9b+45