12. Sam worked out this math problem: “Max and some friends shared the cost of a meal. The meal cost $51 and each person contributed $17. How many people share the cost of the meal?” Here is how Sam worked out this problem:
17x = 51
17x = 51
-17 -17
x = 34
There were 34 people who split the cost of the meal.
Part 1: What is the error that Sam made in this problem? (Write your answer in complete sentences.)

Part 2: Solve the problem correctly.

Solve Part 2 Here:

Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these

Hye ryung is the president of the local chapter of the american medical students association (amsa). she is organizing local outreach and informational meetings. at her first meeting there are five people present (including herself). every month after that her group grows by 5 people. a. how many members are in the group after 6 months? b. the logistics of hosting and feeding her group at meetings was more complicated than expected. the cost of feeding 5 people at her first meeting was $30, for 10 people it was $35, for 15 it was $45, and after 6 months all of the costs had added up to $100. write a function to model the cost with the number of people attending meetings. c. what connections can you make between the linear growth of the group’s membership and the increasing costs of running meetings?

Which of the following is true for the relation f(x)=2x^2+1