A proposed income tax charges 10% on a person's income up to $25,000 and then 20% on income above that. If a person has income of $60,000, what will their income tax be under the proposal?

Find the quotient. 50a2 – 98b2 -5a +7b

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.

If two lines form congruent alternate interior angles with a transversal, then the lines