I'm guess it 5 because you need to find you greatest common factors
Reflection: the object is reflected (or "flipped") across a line of reflection, which might be the x-axis, y-axis, or some other line. Dilation: the object stays the same shape, but is either stretched to become larger (an "enlargement") or shrunk to become smaller (a "reduction").
The first part of the answer is 20x+9
Second part is 4a-6b
Round 2.81 to 2.8 and 3.72 to 3.7. Add both together to get 6.5
