Answer:
28% of the employees wear contact lenses .
Step-by-step explanation:
Formula
\(Percentage = \frac{Part\ value\times 100}{Total\ value}\)
As given
42 of the 150 employees at Carlos car repair wear contact lenses.
Part value = 42
Total value = 150
Putting all the values in the formula
\(Percentage = \frac{42\times 100}{150}\)
\(Percentage = \frac{4200}{150}\)
= 28%
Therefore the 28% of the employees wear contact lenses .
