A fuel producer is formulating a fuel mixture that contains 40% ethanol. To make this fuel, they will take 550 gallons of 37% ethanol fuel and add some 52% ethanol fuel. How much of the 52% ethanol fuel should be added?

The correct answer would be the function g(x) increased at a faster rate

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.