Answer:
-6-b
Step-by-step explanation:
4(1-2b)+7b-10
Multiply what's in parantheses
4(1)=4
4(-2b)=-8b
4-8b+7b-10
Combine like terms
4-10 -8b+7b
-6-b
Hope this helps :)
Is there a math question and can you show it please
Answer:

Step-by-step explanation:
1. Find the numerator:

2. Simplify the fraction:

Hey just take the radius divide by 2 then multiply by pi (3.1415..)