If p - q = 4 and p^2 - q^2 = 24, what is the value of p + q?

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Mrs.sling bought a pound of green beans for $1.80. how much will mrs.tennison pay for 3 1/2 pounds of green beans?