Can someone please help.

Which table shows a proportional relationship between miles traveled and gas used?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

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?