Help plz due in 20 min

Answer:
its either the 3rd one or the 5th one
sorry hope this helps a little bit
Step-by-step explanation:
Answer:
49½+5½
Step-by-step explanation:
Because here, we have 7√5, which we can place the two numbers in index form, 7 is equal to√49 which is 49½ and √5 is equal to 5½. So the answer is 49½•5½