Rationalize the denominator in each expression. that is, rewrite the expression so that there is a rational expression in the denominator -9)/√(x-9))-9)/(√x+3))

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

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?