Martin is interested in the new hypermiling movement which focuses on getting the best miles per gallon (MPG) when driving. He gathered some
data about the weights, in thousands of pounds, of different cars and their average MPG. The graph below shows the results of Martin's research.

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500