Simplify: 4w9+(-2w9) enter the original expression if it cannot be simplified

Determine whether the angles in each given pair are coterminal. 744°, -336°

Can someone me with my hwplz(only the circled ones)

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