I'm not sure if you use "x" as your variable, so:
# + 5 = 3 or x + 5 = 3
The answer for that is 24.
For 6 hours charges $330
for 9 hours charges x
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x = 9*330/6 = 495 so choice C. is right
Answer: 112 pieces
Step-by-step explanation:
1. Rewrite
as a decimal. Divide the numerator and the denominator of the fractional part and add it to the integer part:

2. You know that each metal rod is 15 inches long. Then, you must divide the lenght of each one by 3.6:

3. The waste is 0.16, therefore, you obtain 4 pieces from a metal rod. The total pieces obtained from 28 metal rods are:

Y=8/2
y=4!!!!!!!!!!!!!!!!!