Answer:
13. 
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DON'T GET HOOKED
Step-by-step explanation:
13. 
12. ![5[r + 4] = 45 \\ \\ r + 4 = 9 \\ \\ 5 = r](https://tex.z-dn.net/?f=5%5Br%20%2B%204%5D%20%3D%2045%20%5C%5C%20%5C%5C%20r%20%2B%204%20%3D%209%20%5C%5C%20%5C%5C%205%20%3D%20r)
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6. ![3[a + 5] = 24 \\ \\ a + 5 = 8 \\ \\ 3 = a](https://tex.z-dn.net/?f=3%5Ba%20%2B%205%5D%20%3D%2024%20%5C%5C%20%5C%5C%20a%20%2B%205%20%3D%208%20%5C%5C%20%5C%5C%203%20%3D%20a)
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Answer:
should be 40, because the top line is 40 and the line on the side is the same length
Step-by-step explanation:
Answer:
Length: 10
Surface Area: 20
Step-by-step explanation:
Length:
2*12=24
240/24=10
Surface Area:
2*10=20
Combine the fractions by finding a common denominator.
10r+9/r(r+3)
Answer:
One of the Numbers is -151 and the other is -144
Step-by-step explanation:
Set up the equations then solve
