How can i solve this and can someone me pls

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

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.