Use proportions or scale factors to determine the missing side length.

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

The graph shown is the graph of which function?

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?