The revenue of a company that makes toy cars is modeled by 4x² + 5x - 40. The cost for making the cars can be modeled by 4x2 - 2x + 100. If the profit is the difference of the two
polynomials what is the polynomial that will represent the profit?

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.

(10. in the figure, a aabc is drawn tocircumscribe a circle of radius 3 cm ,such thatthe segments bd and dc are respectively oflength 6 cm and 9 cm. find the length ofsides ab and ac.