What is a demand curve

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

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 the y-intercept of the line given by the equation