Step-by-step explanation:
Answer:
5½ inches
7⅔ - 2 1/6 = 7 4/6 - 2 1/6 = 5 3/6 = 5½
1) 3x+3y-12
2) 4a-4b
4) 7t-98
5) 6x-54
7) 8m-4n
8) -3x+18y
4 inches per hour
7 x 4 = 28