Exercise A Complete the chart by finding the missing items.
Teeth
teeth
RPM
rpm
1)
4
50
20
2)
40
30
8
3)
60
28
15
4)
56
42
28
5)
250
25
100
6)
7)
8)
770
75
12
100
56
100
10
35
20
9)
40
1265
5 20
36
10)
12
Preparing for Careers Chapter 12
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