Answer:
Is it The numbers on the ruler?
Step-by-step explanation:
Most have only 4 different equations.
For example,
6+8=14
8+6=14
14-6=8
14-8=6
Let the angle of elevation be x, then
tan x = 1/12
x = arctan (1/12) = 4.8 degrees.
The answer is 3.66 (it’s a positive number because the two negatives cancel each other out)