Answer:
19
Step-by-step explanation:
4.22 * 4.49= 18.9 So I would round up to 19 or 20.
2^3=2*2*2=4*2=8
the answer is 8
The given equation is
We need to solve the equation for q.
<u>Value of q:</u>
Let us determine the value of q from the equation 
Subtracting both sides of the equation by r, we get;

Now, dividing both sides of the equation by b, we have;

Simplifying the terms, we get;

Therefore, the value of q is 
Hence, Option B is the correct answer.