Answer:
Step-by-step explanation:
cost is 20 fee + .25 per mile.
c =20+0.25m
Answer:

Step-by-step explanation:
<u>Step 1: Find the single power of these numbers</u>
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Answer: 
We have an equation: 432/?= 3/5
Cross multiply:
3*?= 432*5
⇒ ?= 432*5/3= 720
720 students use regular pencils~