You are running a fuel economy study. One of the cars you find is blue. can travel 30 1/2 miles on 1 1/4 gallons of gasoline. Another car is red. It can travel 28 4/5 miles on 4/5 gallons of gasoline. The unit rate for the blue car is ___ per gallon

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

With alll of except for the 2 that i did already

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18