With tuesday, thursday, and friday !

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

Could someone with number 1 and 2

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b