Alex earned $20. he earned 1/4 of the amount rob earned. how much did rob earn? write an equation to match.

(hurry! ) which expression is equivalent to the following complex fraction?

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

You are measuring the dimensions of the floor in your bedroom because you are planning to buy new carpet. which unit of measure is the most appropriate to use in this situation?