Given ax2+bx+c=2(x−1)(2x+3)+(x2−4x+2), what the values of a, b, and c?
a
b
c

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.