If tom had a base pay of $6.35 and worked 28 hours, what would be his pay for the week

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.