The number of minutes oliver spends working on math is 60% of the time he spends working on homework. on monday he spent 30 minutes working on math. how many minutes did he spend on homework in all?

Attached are two different strategies you could use to find this answer. One of the strategies sets this up as an equation you need to solve, and the other one sets it up as a proportion.

He spent a total of 50 minutes on homework.

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.