<h2>
Answer:</h2>
<h2>
Step-by-step Explanation;</h2>

<h2 />
<h2>HOPE IT HELPS!!!</h2>
<h2>I NEED BRAINLIEST ✌️</h2>
Answer:
The center of circle is
Step-by-step explanation:
We need to find the center of the circle of the equation 
Since, the general equation of circle is 
Where (h,k) is center of circle and r is radius.
Re-write the circle equation is
as,

Compare
with 
so, 
Hence, the center of circle is 
D= 65 degrees.
Because straight line adds up to 180
So 180-115= 65
Answer:
b. 300x1 + 125x2 < = 4,000
Step-by-step explanation:
Maximum of 4,000 hours
This means that the the total amount of labor has to be of at most 4,000, that is:

300 ping-pong balls (x1) or 125 wiffle balls (x2) can be produced per hour of labor
The total amount of labor is:

Uniting the two equations:


And thus the correct answer is given by option b.