Nx 5.06=506.00 where do i move decimal to and how do i solve n

Is the open sentence 5x-2=3x+2 true when x=2? justify your answer.

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show