Victor has $20 cash if he spends $7 to wash his car and uses the balance to buy gas at $2 gallon how much gas can he buy

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

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?

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?