D. Because the teachers are what matter in this survey.
<u>Answer:</u>

<u>Step-by-step explanation:</u>
Given to us is , 5 ( x + 12 ) and we need to find which is its equivalent in the given options .
So,

<h3>
<u>Hence</u><u> </u><u>opt</u><u>ion</u><u> </u><u>C </u><u>is</u><u> correct</u><u>.</u></h3>
Step-by-step explanation:
1 l = 22.5 km
125 l = 22.5 × 125 = 2812.5 km