(7x^2 - x - 2) - ( -6x^3 + 3)

a. 6x^3 + 7x^2 - x - 5
b. -6x^3 + 7x^2 - x + 1
c. -x^3 - x - 5
d. x^2 - x + 1

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points