Help pretty plz

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

What is not true about kl and mn? what is mn? (show )

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?