Using proportions, it is found that:
7. The commission is of $1,176.
8. The unemployed compensation is of $3,978.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.
For item 7, the average salary, which is the sum of all salaries divided by the number of salaries, is given by:
(82000 + 96000 + 105000 + 109000)/4 = $98,000.
The commission is 1.2% of that, hence:
0.012 x 98000 = $1,176.
The commission is of $1,176.
For item 8, the compensation is 60% of the average, which is given by:
A = (6830 + 6430)/2 = $6,630.
Hence:
0.6 x $6,630 = $3,978.
The unemployed compensation is of $3,978.
More can be learned about proportions at brainly.com/question/24372153
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