Answer:
20 degrees
Step-by-step explanation:
9 - (-11) = 20 degrees
Answer:

Step-by-step explanation:
Given

Required
Determine the expression for s
The speed is calculated as:

Substitute S for speed

Let the number of books be b and the time be m.
The expression becomes

Hence, the expression for the scenario is:

Answer: 2 is a given which is (SV | | TU)
I need help with the others.
Step-by-step explanation: