A. We can write an equation in the slope-intercept form to model this situation:
y = mx + b
y = 26x + 475
y = total cost; x = number of people
y = 26(95) + 475
y = 2470 + 475
y = 2945
The total cost will be $2945.
B. I assume that this part of the problem is asking for the amount each person will have to contribute to help pay for the renting of the room. To find this amount, simply divide the total cost ($2945) by the number of people attending (95):
2945 / 95 = 31
The cost per person will be $31.