The sum of what number and -9 is -3 ?

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

In angle pqr find the measure of

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.