21 + 28 = 49 students
Ration of history 21 to students 49 = d)21:49
D So yea or A I think at least try D
Turn the 50 into a fraction (50/1) then cross multiply the fractions after that turn it into a equivalent fraction and you you get your answer
(I think)
The answer would be:
93
+75
-------
168
Answer:
2 in
Step-by-step explanation: