Answer: Answer is 12.
Step-by-step explanation:
6 - (-6)
6 + 6= 12
Keep, change, change.
Keep 6
Subtraction sign to addition.
Negative 6 becomes positive.
Check photo for answer! i have included work
Answer:
4.19
Step-by-step explanation:
just use the formula 2pir^2
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:

|3+10|=|3|+|10|
|13|=|13|
13=13