The area of a circle is 1,962.5 square centimeters. what is the diameter?

Write a numerical expression that satisfies all of the following conditions. 1.)the only number used in the expression is 5 2.)at least one exponent other than 1 is used 3.)when the expression is evaluated, the answer is greater than 40 and less than 50

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g