PLZZZ HELPPP IM FAILLING THIS CLASS

Factor the polynomial. b^2 + 4b + 4

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

Abc is dilated by a scale factor of 3 with the origin as the center of dilation, resulting in the image a'b'c'. if the slope of line ab is -1.2, what is the slope of line a'b'? a. -1.2b. 3.6c. 1.2d 1.8