Convert 11.42424242 to a rational expression in the form of a over b where b aproximatly equals 0

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

Write a similarity statement for the similar triangles. afgh ~ a

The width of a rectangle is half as long as the length. the rectangle has an area of 18 square feet. what are the length and width of the rectangle?