The total earnings for one hour is equal to the sum of all the salaries. total earnings = all the salaries added together There are three groups of different leveled salaries. For each group, use this formula:
There are 8 that make $8 an hour so:
There are 3 that make $10 an hour:
And there is 1 that makes $12 an hour:
Each of the groups make 64, 30, and 12 dollars respectively. Remember, the total earnings is all the salaries added together. So add these three numbers together: total earnings=64+30+12=106 The whole group made $106 in one hour.