The county water department charges a service fee of $10.15 plus $0.005 for each gallon of water used. the inequality shown is used to determine the number of gallons of water, x, used by customers whose monthly charges range from $35 to $55.

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.