Ellen drove 357.3 miles. for each gallon of gas, the car can travel 21 miles. select a reasonable estimate of the number of gallons of gas ellen used.

If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no. explain your mathematical thinking