Answer:
4
Step-by-step explanation:
-3 + 6 = -3
add the terms -3 and 6
exponent law
Brand A: $0.40
Brand B: $0.30
Brand C: $0.25
Brand D: $0.20
178.0
B. 6 feet
4 ÷ 2 = 2
6 ÷ 2 = 3