Answer:
24
Step-by-step explanation:
let 'x' = number
x/2 - 2 = 10
add 2 to each side to get:
x/2 = 12
cross-multiply to get:
x = 24
The answer is 0.8. Non of the options are correct
Answer:



Step-by-step explanation:
Given

Required
Determine: 
Solving for
, we have:
--- angle on a straight line
So, we have:



To solve for
, we have:

--- Vertically opposite angles
So:

