Which expression is equivalent to -2y^-5

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

The equation represents the function f, and the graph represents the function g. f(x)=3(5/2)^x determine the relationship between the growth factors of f and g. a. the growth factor of g is twice the growth factor of f. b. the growth factor of f is twice the growth factor of g. c. the growth factor of f is 2.5 times the growth factor of g. d. the growth factor of f is the same as the growth factor of g.

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18