1. 270 ÷ 9 = 30
30 × 4 = $120 = Amanda
270 ÷ 3 = $90 = Betty
270 ÷ 6 = $45 = Cameron
120 + 90 + 45 = 255
270 - 255 = $15 = Dalia
2. a + (a + 6) = 70
2a + 6 = 70
- 6
2a = 64
÷ 2
a = 32
32 + 6 = 38
Piece 1 = 32 inches
Piece 2 = 38 inches
I can't answer question 3 because I can't see the whole diagram, but I hope this helped!