Solve:
71mn - 30m^2 - 42n^2

a. (6m - 7n)(6n - 5m)
b. 13n(6m - 7n)
c. -mn
d. -n(6m - 7n)

Use the x-intercept method to find all real solutions of the equation.x^3-10x^2+27x-18=0

The green family is a family of six people. they have used 4,885.78 gallons of water so far this month. they cannot exceed 9,750.05 gallons per month during drought season. write an inequality to show how much water just one member of the family can use for the remainder of the month, assuming each family member uses the same amount of water every month.

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.