The data set shows the numbers of hours that employees at a certain shop worked in one week what is the mean number of hours they worked that week? 27,28,30,33,28,40

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Find the domain of the following expression: 1/(√x)-2

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17