Does a system of linear equation always have a solution?

In the figure dhg fhe which statement is true by cpctc

Rewrite the following without an exponent. (5/8)-1

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