Ateacher took a survey and found that 18 of 25 students liked a certain snack item best. make a prediction of how many students liked the snack item best if there are 175 students. a)135 studentsb)119 studentsc)126 studentsd)116 students

This is probably not how you do it, but,...
I did 25 (students) x 7 = 175 (students)
So then I did 18 x 7 = 126
so the answer is C) 126 students.
But if your teacher or whoever wants to know how to do it correctly and show the work correctly then don't do what I did because they may take off points (if they're strict...) (and that probably didn't make any sense but whatever...) Hoped this helped! :)

Since there are 175 students total, and only 25 were surveyed, then 1 out of 7 students were surveyed.

Then we would expect the number who liked a snack to be 7 times larger than 18, which is 126.