4n - 1 = 6n + 8 - 8n + 15

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

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

Sammie has 3 times as many goldfish as nora. nora has 4 goldfish. how many goldfish do sammie and nora have in all?