Answer:
<u>x = -3</u>
Step-by-step explanation:
-5x + 9 = 24
move the nine to the other side
-5x = 15
divide
x = -3
Use the Pythagorean theorem.
If x is a hypotenuse, then we have:

If x is a leg, then we have:

Answer: 
If there are 20 groups of 10, then there are 200 pencils. Subtract 200 and 137 to get the number of dull pencils.
Answer:
6
Step-by-step explanation:
To make this easier i like to turn my length into a fraction with the same denominator
36/1= 18/2
18/2 divided by 3/2 equals 6
6 total pieces
Hope this was helpful
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