Instead of adding 6 three times, you can multiply 6 by 3 and get 18, the same answer.
Similarly,
6 + 6 + 6 + 6 + 6 + 6 + 6 = 6 × 7 = 42
Answer:

n ≈ 3
Step-by-step explanation:
9n-2<7+20

Answer:
-7/12 is the answer of your question
Answer:
594.78
Step-by-step explanation:
600-5.22 = 594.78
Answer:
<A = 30°
Step-by-step explanation:
5x - 18 = 3x + 42
2x = 60
60/2 = 30
<A = 30°
hope this helps :)