PLEASE HELP And give an explanation because there is a Part B answer asking for an explanation

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)

Suppose your sat score is 2040. a college with an average sat score for admintted students of which of these would most likely be your best option?