Iliterally need because this is too hard

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

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?

Can someone tell me if this is perpendicular? !