Answer:
2 units
Step-by-step explanation:
The given equation of the circle is:

The general equation of the circle is:

Comparing the given equation with the general equation we can say:
g = 4
f = -3
c = 21
The formula for radius of the circle is:

Using these values of the given circle, we get:

Therefore, the length of radius of the given circle is 2.
The answer will be D 15m+2n
Answer:
64
Step-by-step explanation:
cus 8 times 4 is 32 and 32 times 2 is 64