Betty bought two hot dogs and a soda for $11. josh and his family bought three hotdogs and 2 sodas for $17. determine the cost of a hot dog and soda.

What is the number 321,000,000 in scientific notation? also what is the number? ?

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?

What is the perimeter of an equilateral triangle if each side is (x+3)?