What is the reference angle for the angle with measure -pi/4

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

What is 1/3x5 on anuber line what does it look like on a number line

4+(2+x) can you me solve this problem