David is 4 feet 5 inches tall and his friend Ivan is 5 feet tall. One foot equals 12 inches. How many inches taller is Ivan than David?

What fraction is larger 1 1/6 or 1 4/12

Estimate to the nearest ten (305 x21) / 44

Kelly and Adam are buying boxes filled with candy to give to friends. Kelly chooses a cone-shaped box that has radius x. Adam chooses a box in the shape of a square pyramid, with the same height as Kelly's box and a side length of xπ√.

The average yearly rainfall in the sahara desert used to be 10 inches. a climatologist believes that amount has changed. which represent the null and alternative hypothesis?

Which ratios are proportional to 14 : 21? Choose all answers that are correct.

X=65-30 Solve for x A, B, C

Solve each system using substitution. 1. 4x = 3y-2; 18 = 3x+y 2. 3x+2y = 23; 1/2x-4 = y

6. How many positive integers not exceeding 1000 are divisible by 3 or 5 or 7?

bob has $830 in an account earning 5.3% simple interest. how much more interest would her account earn in 9 years with annually compounded interest?

For the quadratic equation x2 + 2x + 8 = 0, find the value of the discriminant. Then, describe the number and type of roots for the equation. Finally, find the exact solution of the equation by using the Quadratic Formula.