What is the size of the matrix resulting

What is the value of x? 3x + (6x - 6) = 4(2x-2)

Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way