Ok tell me if u think this one is right. a-b=5, what does b-a equal? answer 1/5

1. what are the missing reasons in the proof 2. it's in the second picture and 3

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

What is the solution of log2  (3x  -  7)  =  3? 4 5