Answer:
6
Step-by-step explanation:
Any circle in the form

Where r^2 is the radius squared, so


Answer:
139.71
Step-by-step explanation:
22% of 179.11 is 39.40
179.11 - 39.40 = 139.71
Answer:
1. 195=6.50·c
2. 30
Step-by-step explanation:
195=6.5·c
Divide both sides by 6.5
30=c
He has a total of 7 Boards. he has 3 boards of his own and then you add the 4 additional boards that he has