Answer:
9. 31/2 or 15.5( I think that's the answer)
10. B
Step-by-step explanation:
The equation of a circle with center
and radius
is

In your case,

Plug these values into the generic formula and you'll get your equation.
Answer:
648
Step-by-step explanation:

Answer:
Y + (Y + 4) your answer.
Step-by-step explanation:
Y is representing Diego's age and his brother is four years older than him so that is how you would get (Y + 4). It then stated the sum of both ages so that is how I got the equation.
Answer:
4
Step-by-step explanation:
the more sections there are the less of a chance the same section ould be landed on so many times. Its almost impossible to land on one of 400 25 times