is this graph proportional or non

group of answer choices

proportional

non-proportional

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.

Answer! if you don’t mind, can you explain