Which two relationships have a y-intercept and a constant rate of change?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Which number completes the inequality? 2/3 < _ < 7/9

Keith runs 5 miles in 38 minutes. at the same rate, how many miles would he run in 57 minutes