Which expression can be used to find the difference of the polynomials?
(4m – 5) – (6m – 7 + 2n)

a. (4m – 5) + (6m + 7 + 2n)
b. (4m – 5) + (–6m + 7 + 2n)
c. (4m – 5) + (–6m – 7 – 2n)
d. (4m – 5) + (–6m + 7 – 2n)

What does the relationship between the mean and median reveal about the shape of the data

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?

Which one is the correct answer, and why?