It is more expensive to call him back two times for three hours.

Step-by-step explanation:
That is the answer if the equation looks like this:
Answer:
31/35
Step-by-step explanation:
= 62/70
= 62 ÷ 2/70 ÷ 2
= 31/35
Area of circle = πr2 = π(23)^2
Can you give the data please?