Solution:
A. Division
→→→True
B. Multiplication
L HS
R HS
LHS ≠ RHS
→→→→False
C: Addition
D: Multiplication
LHS
Option B: is not correctly closed under Multiplication.
Answer:
1 1/2 hours
Step-by-step explanation:
= 3 ÷ 2
= 1 1/2 hours.
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The difference is 15.
30-15=15
45-30=15
60-45=15
slope is 4