$30$ Unit $2$ Review B

Name

all your work to receive full credit. Be sure to include units where appropriate.

Walmart offers a $2$ pack of $15$ oz bags of Nacho Cheese Doritos for $$7\mathrm{.}65.$ Costco offers a $64$ pack of $1\mathrm{.}75oz$ bags of Nacho Cheese Doritos for $$32\mathrm{.}99.$

a$.$ Calculate a unit rate in terms of ounces per dollar for Walmart. Include all units.

b$.$ Calculate a unit rate in terms of ounces per dollar for Costco. Include all units.

c$.$ Which option is the better buy? Explain your answer.

$79$