Answer:
Step-by-step explanation:
sum is addition
7 more than the number would be x+7
so x + (x+7) = 91 is the right formula
Answer is C
divide 111 in half
111/2 = 55.5
take the whole number above and below 55.5
so you get 55 and 56
55 + 56 = 111
56 is the larger one