Answer:
look below
Hope it helps
explanation:
18.
1 yard = 36 inches, (36, 1)
3 yards = 108 inches, (108, 3)
5 yards = 180 inches, (180, 5)
7 yards = 252 inches, (252, 7)
19.
2 gallons = 32 cups, (32, 2)
3 gallons = 48 cups, (48, 3)
4 gallons = 64 cups, (64, 4)
5 gallons = 80 cups, (80, 5)
20.
2 yards = 6 feet, (6, 2)
4 yards = 12 feet, (12, 4)
6 feet = 18 feet, (18, 6)
8 feet = 24 feet, (24, 8)
21.
1 min = 60 seconds, (1, 60)
3 mins = 120 seconds, (3, 120)
5 mins = 300 seconds, (5, 300)
7 mins = 420 seconds, (7, 420)
