Reuben is mailing packages. Each small package costs him $2.60 to send. Each large package costs him $4.10. How much will it cost him to send 6 small packages and 1 large package?

If the measure of xyz is 81 what is the measure of yz

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Rewrite the polynomial -9x5 + 36x4 + 189x3 in factored form.