The Ortiz family will travel round-trip from Indianapolis to Denver this summer. The
driving distance between the two cities is 1,058 miles. They need to find out about how
much the gas will cost round trip. Their car gets about 20 miles per gallon. They usually spend about $2.89 per gallon. c. Write and solve an algebraic equation to find out how much the
Ortiz’s will spend on gas round trip. Explain your steps.
d. Suppose you know the total cost of the gas, but do not know the price
per gallon. Explain how you would work backward to solve the
problem.

There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?