Aboard is 4ft 8in long how long is the board in inches

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

Which of the following expressions is equal to 2x^2+8

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8