Need help assap A histogram is being made for the following set of data. If the length of each interval is going to be 7, how many bars will there be on the histogram?

78, 92, 98, 87, 86, 72, 92, 81, 86, 92

A. 7

B. 4

C. 5

D. 6

I would think it is A but that could be wrong

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

answer: the first graph

step-by-step explanation: