What are the areas? I don’t understand this.

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?