85. i provided a picture just incase you needed your work shown.
The answer is C: the missing number is 25
<u>Final Answer:</u>
x = 20
<u>Step-by-step explanation:</u>
we'll be using the pythagorean theorem method, in this triangle the missing letter is a.
formula: 
a = x
b = 21
c = 29
a = 
a =
(note: 29² = 29 × 29 = 841 and 21² = 21 × 21 = 441)
a = 
a = 20
x = 20
The person she should go to is Melinda
Im not too sure, but C might work as an answer...
Sorry if it's wrong :(