Final answer:
The total charge for the company picnic with 180 guests is $6,420, which includes the food cost for all guests and the field rental fee.
Step-by-step explanation:
To determine the total charge for 180 guests attending the company picnic, we first calculate the total food charge for the guests by multiplying the number of guests by the cost per guest:
180 guests × $35 per guest = $6,300 for food.
Next, we add the rental fee of the field to the total food charge to get the overall total charge:
$6,300 for food + $120 for field rental = $6,420 total charge.
Thus, the total charge for the company picnic with 180 guests is $6,420.