Annual profit=75,000÷6=12,500
ROI=12,500÷15,000=0.8333×100
=83.33%
104 is the number because 114-10=104
-4w + 8v + 2y = -4w + 8v + 2y
B^n+5
When multiplying exponents the numbers are added
G(x) = 2x² - 5x + 2 = 2x² - 4x - x + 2 = 2x · x - 2x · 2 - 1 · x - 1 · (-2)
= 2x(x - 2) -1(x - 2) = (x - 2)(2x - 1)
g(x) = 0 ⇔ (x - 2)(2x - 1) = 0 ⇔ x - 2 = 0 or 2x - 1 = 0
x = 2 or x = 0.5