Which expression can you simplify by combining like terms?
A. 6d2+5cd−3dc+8
B. 12c2−8d2c+3dc+4
C. 7d2−3c2+6d−c
D. 16c2+8cd+7c−8d

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Simplify the given expression leaving the answer in improper fraction form. 2/3+5/6

Pentagon abcde is dilated according to the rule do,3(x,y) to create the image pentagon a'b'c'd'e', which is shown on the graph. what are the coordinates of point a of the pre-image? a) (-1, 1)b) (-1, 2)c) (-9, 6)d) (-9, 18)