This problem can solve by the rule of three.
42 installations-----------------------6 hours
147 installations---------------------- x
x=(147 installations * 6 hour) / 42 installations=21 hours.
Answer: 21 hours.
First, you subtract 2x on both sides

divided on both sides by -3

<h2>Hi ☘</h2>
1-A 2-A 3-B

put -8 near -104


b will be alone.


Answer A





Answer A
İf

The answer would be D
But answer A





Answer B
<em><u>We</u></em><em><u> </u></em><em><u>learnt this</u></em><em><u> </u></em><em><u>way in Turkey</u></em><em><u>.</u></em>
The square root of 75 is 8.66, so it would be between 8 and 9
Answer:
n=12
Step-by-step explanation:
3.3(n-8)-n=1.2
Distribute
3.3n -26.4 -n = 1.2
Combine like terms
2.3n -26.4 = 1.2
Add 26.4 to each side
2.3n -26.4+26.4 = 1.2 +26.4
2.3n = 27.6
Divide each side by 2.3
2.3n/2.3 = 27.6/2.3
n=12