Answer:
A
Step-by-step explanation:
There is an empty dot on 4, meaning b is not equal to 4.
The arrow is going to the left of 4, so it means that b is less that four.
Hope that helps!
Answer:

Step-by-step explanation:
The given expression is;

Factorize;

Cancel out the common factors;

Simplify;

Answer:
iters and millimets
Step-by-step explanation:
Ur welcome:)
You would use the tangent first, because the opposite of 40 would be x and the adjacent would be 30ft