What is the sum of the polynomial?(7x^3-4x^3)+(2x^3-4x^2)

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.