Work out the size of angle x

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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

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)