In a recent year the population of a country was 5.12,×10^5 while the population density was 519 people per square mile the population density is 5.19×10^2 people per square mile.

The percent discount was 120

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.

Yes the company can use two vans it works