Answer:
x = 10
Step-by-step explanation:
2+3+4+5+6 = 20
(20 + x) / 6 = 5
cross-multiply:
20 + x = 30
x = 10
B
Cost of roses and lilies-99.66
I think it would be b) because you're given a slope of 0, so that leaves you with

, resulting into this

You'd be just left with a continuous horizontal line going through the y-axis of 3 since you're passing the point (2,3), where 3 represents the y-value when your slope is at 0.