Two fifths of one less than a number is less than three fifths

What is a binomial radical expression

What is value of 5.872 + (-0.84) : 2.1

What is the sum of the geometric sequence 1,3,9, ... if there are 13 terms

If a dice is rolled 8 times, how many times is the number 2 expected to come up?

Pythagorean's theorem 16^2+b^2=34^2

Which expression is equivalent to 8 - (6r+2) -6r+6 2r+2 6r+10 -6r+10

Solve m = 2E/v^2 ... solve for E

How are number lines and coordinate plane related

Analyze how the circumference of a circle would change if the diameter was doubled

Nora wants to find her average grade in her science class. She has earned a score of 85% on two tests, 92% on three tests, and 94% on her most recent test. What is Nora's mean, or average, test score?