HELP PLEASE Determine the solution to the following system of equations.

y = -2x2 + 4x + 8
y = -4x + 16

Alaptop computer is purchased for $1350 . after each year, the resale value decreases by 30% . what will the resale value be after 5 years?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =