The weekly earnings of this employee would be $358 per tire installed and $420 per total weekly hour per spent.
To get the total weekly earnings per tire installed, we simply employ multiplication. That is, we multiply, $3.20 * per tire installed daily and then sum up the total for the 5 days work period.
Total: $358
Meanwhile, we get the total weekly earnings using the "per hour for an 8-hour day" calculation by multiplying by 5 days.
8 *5 = 40
40 hours per week * $10.50 per hour = $420
You can learn more about calculating weekly earnings here https://brainly.com/question/11007837
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