I need some help on one question it’s 9 and 10

If you are just building your payment history, how many points from a perfect score will you possibly miss?

Norder to get a certain shade of blue paint, a mixer must have 5 parts white paint to 3 parts blue. if 4 gallons of paint must be mixed, how many gallons of white paint must be used?

V=x^4-y^4 pick three expressions that can represent the three dimensions of the prism (each in meters)