The cost of shipping a package overnight from San Antonio to Dallas is $5.50 plus $0.85 per ounce. Which function rule could you use to find
the cost to ship a package that weighs x ounces?

c(x) = 5.50x + 0.85
c(x) = 0.85x + 5.50
c(x) = 5.50 - 0.85x
c(x) = (0.85 +5.50)x