Answer :
I think it’s the first one because it says S represents the total so I’m guessing to add 764 and 118 and it will get you the total.
Answer:
D. 118 + s = 764
Step-by-step explanation:
To find the total number of students in all the other grades, if we only know the total number of students in the school and the number of kids in 3rd grade, we need to subtract the kids in 3rd grade from the entire school. This leaves us with 646.
s = 646
Hope it helped!