If 150 miles is 25% of a race, what is the length of the entire race?

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

36 inches/second = yards/minute how many yards?

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83