Answer:
C. $80
Step-by-step explanation:
To determine how much money will four people save altogether one way using the lower rate, you have to calculate the cost of buying four tickets with the regular airfare and the cost of buying four tickets with the special discount and then, find the difference:
Regular airfare=$125
125*4=$500
Airfare with discount=$105
$105*4=$420
$500-$420=$80
According to this, the answer is that four people will save $80 using the lower rate.