The Average of 25, 29 and x is 29 Find x Please come up with right answer only two more try's until I get no credit

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

You work in a hospital that has 9 floors. you need to see 3 patients on each floor. how many patients do you need to see in all?