Since 20% or 1/5, is ___, there will be ___ word problems on the test

Question 10jur's car can travel 340 miles on 12 gallons. jack's car can travel 390 miles on16 gallons. which person has the best mileage (miles per gallon) and what istheir mileage?

Let f(x) = x+3 and g(x) = 1/x the graph of (fog)(x) is shown below what is the range of (fog)(x)?

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?