What is the average (arithmetic mean) of eleven consecutive integers? (1) the average of the first nine integers is 7. (2) the average of the last nine integers is 9?

Geometry answer picture question pls . reason and statements

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

For the equations below which statement is true ? -2x=14 6x=-42