What answers well whats the question?
Since 20 is a factor of 40, the least common denominator of 3/20 and 9/40 is 40.
Right angle (angle p) = 90°
supplementary means total equals 180°
so 90° + q = 180°
subtract 90° from both sides
q = 90°
Answer:
Sorry I don't know
Step-by-step explanation:
We have to check which of PEMDAS rules can be applied in this case. We have only ADDITION. In this case we can observe that addition is:
1. Associative

2. Commutative

3. has Additive property