Final answer:
The average of Sammy Sales's receipts for the first six months is calculated by summing up all the sales and dividing by 6, resulting in an average of $1,526.67.
Step-by-step explanation:
To calculate the average sales for Sammy Sales's tree trimming business for the first six months of the year, you need to add up all the receipts for these months and then divide by the number of months. Adding the receipts for January to June gives us:
$1,205 + $1,450 + $1,530 + $1,655 + $1,610 + $1,710 = $9,160
Now, we take the total sum and divide it by the 6 months to find the average:
Average = $9,160 / 6 = $1,526.67
The average of his sales for this period is $1,526.67, rounded to two decimal places.