Solve this problem. a number c decreased by 9 is less than or equal to 20. find c.

a c ≤ 28
b c ≤ 20
c c ≤ 29
d c ≤ 11

Diana is painting statues she has 7/8 of a liter of paint each statue requires 1/20 of a liter of paint how many statues can she paint?

3382-299=3383- ? fill in the blank?

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?