Vanessa and dominic are buying chicken for a barbecue. the table shows prices for different packages of chicken.

vanessa says the constant of proportionality is 4. dominic says it is .
who is correct? explain your reasoning.
a. vanessa is correct because 6 – 2 = 4.
b. dominic is correct because is the smallest number.
c. dominic is correct because the quotient when dividing the values in the top row by the values in the bottom row is always .
d. vanessa is correct because the quotient when dividing the values in the bottom row by the values in the top row is always 4.

Carla was trying to decide what to do saturday evening. she has $100 available to spend for the evening. she has narrowed her choices down to these events: braves game, a concert of an artist she likes, or the georgia aquarium. admission to the braves game is $25, hot dogs cost $10, sodas cost $5. the concert costs $25 for admission, $20 for a souvernir t-shirt, and $10 for a soda. the georgia aquarium has the show of a lifetime with an all you can eat and drink that costs $100. carla does not want to take any driving chances, so in addition to the cost of the aquarium, she will also need to pay for her uber/lyft, which is $15 each way. which option should carla choose if she wants to spend the least? based on that choice, what then is carla's oppotunity cost? fully explain your answer in at least one paragraph.