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Answer:
c. 23.63
Explanation:
"Time and a half" means each hour of overtime is paid at 1.5 times the regular pay rate. Hence, an hour of overtime earns ...
1.5 × $15.75 = $23.625 ≈ $23.63
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Additional comment
The rounding of overtime pay will occur at the end of the computation. The first hour of overtime (and each odd hour) will earn $23.63, but the second hour (and each even hour) will earn only $23.62.
That is, total pay for 2 hours of overtime will not be 2 × $23.63 = $47.26, but will be 2 × $23.625 = $47.25.