Answer:
Step-by-step explanation:
3(a+3)-6=21
<=>3a+9-6=21
<=>3a+3=21
<=>3a=18
<=>a=6
The answer is 2/7 because you're finding the greatest common factor of both numbers. The gcf is 8, so divide both by 8 and you'll get 2/7
The answer is 5100 seconds in 85 minutes
Step-by-step explanation:
question 8 answer = -4
questions 9 answer = -18
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