Answer:
You can go for 1x9, 2x8, 3x7, 4x6, 5x5.
5x5 is the best as it builds a square, which maximizes space.
20*2.50 = $50.
The answer is D. First, it is the segment addition postulate because the two segments make up the whole. Second, it's substitution because you are substituting EF + FG for FH.
Hope this helps!
2/10 in simplest form is 0.2
.45 * 120 = 54
.072 * 54 = 3.888
54 + 3.888 = 57.888= $57.89