Which pair of expressions are equivalent?
34+5-9v+2 and - 6v+6
-6n+3-2n+2 and -bn+6
-4n+8+9n-2 and 5n+6
10n-5-2n+3 and 5n-2

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected