A gallon of water weighs 8 pounds. A bag of pebbles weighs 25 pounds. A fish tank can hold up to 1,200 pounds. Let x represent the number of gallons and y represent the number of bags of pebbles.

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.

The equation is  125+22m=b