Evaluate using the correct order of operations: 12 - 2 ⋅ 4

Explain how you can use the associative property to evaluate (7x50)x4.

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?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b