Final answer:
To have the air conditioner shipped, the student must pay 40% of the total cost upfront, which is $120.
Step-by-step explanation:
The student is asking how much they need to pay upfront to have an air conditioner shipped to them if they are required to pay 40% of its total cost initially. The total cost of the air conditioner is $300. To calculate the upfront cost, you multiply the total cost by 40%, which is the same as 0.40. So, the calculation is $300 × 0.40 = $120. Therefore, the student must pay $120 now for the air conditioner to be shipped.