Answer:
Step-by-step explanation:
Answer:
It would be 78.539...
Step-by-step explanation:
So the equation for area is π r^2. We don't have the radius but we have the diameter. Since the radius is always 1/2 of the diameter, simply divide 10/2 to get this.
Now with the radius, it can simply be plugged into the equation for the answer:
π r^2,
π 5^2,
π 25
78.539...
Andy: $45
Ben: $33
Cathy: $99
a+b+c=177
c=3b
a=b+12
b+12+b+3b=177
5b+12=177
-12 -12
-----------------
5b=165
---- -----
5 5
b=33