Suppose that functions r and s are defined for all real numbers x as follows r(x)=3x-2
s(x)=4x
write the expressions for (r+s)(x) and (r. s)(x) and evaluate (r-s)(3)

Which of the following situations represents a linear relationship? a. theresa increases the distance she runs by 0.1 miles every week. b. the volume of a box depends on the length of box. c. the amount of money in a bank account increases by 1 percent each year. d. the population of a town doubles every 5 years.

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 is a graph of a proportional relationship?