If one store sells 12 pens for $9.00 and another sells 10 pens for $7.80, which is the better deal? if you have to buy 120 pens, how much will you save by using the less expensive supplier? compare prices per pen

Write a polynomial for a third-degree polynomial with leading coefficient -4

Multiply. −2x(6 x 4 −7 x 2 +x−5) express the answer in standard form. enter your answer in the box.

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable