Jan used 22.5 gallons of water in the shower. this is 7.5 gallons less than the amount she used for washing clothes. write and solve an equation to find the amount of water jan used to wash clothes.

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.