x+4y=17 and -x-6y=-23 what's the x and y I really badly need this I need this so I can play at my basketball game tommorw and I still have like 8 questions to go

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?