Answer:
The answer is "120".
Step-by-step explanation:
Given values:

differentiate the above value:




This is super simple. Begin with cross multiplying
35/x=7/13 becomes (35)*(13)=(7) *(x)
Then multiply my love muffin, you get...
455=7x
divide both sides by 7
65=x
-or-
x=65
hope that helped :)
You're right on what you've been doing
<ADB = 90 degrees
hope it helps
Answer:
Darn I had one of those a few weeks ago, I'm so sorry if I'm wrong but I think it's option 3? I'd wait for someone else to answer though just it case I'm wrong. God bless!