Sum and difference identities​

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

Answer pls man im trying to get out of summer school

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.