Answer: D
Step-by-step explanation:
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9n+3=7n+19, 9n-7n=19-3, 2n=16, n=8.
check it
72+3=75chairs
56+19=75chairs
Answer:
4.5
Step-by-step explanation:
you have to distribute and then solve
Answer:
4:1
Step-by-step explanation:
Corresponding sides...
4:1
4.4:1.1
4:1
6:1.5
simplify any of these or all to get
4:1