How to find the value of the variable in Algebra

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

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

Nine more than four times a number is the same as one less than twice the number. find the number?