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Scilla [17]
3 years ago
11

Help me please! Posting a lot of them lol!

Mathematics
1 answer:
Vaselesa [24]3 years ago
3 0

Answer:

2n -4

Step-by-step explanation:

n+8 + n-12

Combine like terms

n+n+   8-12

2n -4

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Evaluate 3^5 : 3^2 <br><br> Simplify the ratio 4:5 in the form 1:n
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Answer:

Step-by-step explanation:

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Two mechanics worked on a car. the first mechanic worked for 10 hours, and the second mechanic worked for 15 hours. together the
Yuliya22 [10]
Let x and y be the rate per hour for Mechanic 1 and 2 respectively.

Then,
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3 years ago
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damaskus [11]

Answer:

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2 years ago
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