Angela needs $60 to buy a series of books, she has saved $24 dollars and plans to work as a babysitter to earn 4 dollars per hour

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

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

What properties allow transformation to be used as a problem solving tool