Marcus plans to buy 3 items at the flea market. The items cost $9.85, $12.50, and $12.05. He estimated the total cost by rounding each price to the nearest dollar. Which most closely estimates what Marcus will pay for the 3 items?

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1

9x

thats not a system of equations, that is a solution