Answer:
507
Step-by-step explanation:
As they said, I will be using 3 as pi.
(pi)
(radius squared)
Without annotations: 

; 


1584 lightbulbs would be defective out of 4400
Answer:
Step-by-step explanation:
Since, the variables x and y are inversely proportional.

Answer:
the answer is 4aX(21+5ax)
Step-by-step explanation:the big x is a multiplication symbol
Answer:
<em><u>96</u></em>
<em><u>Step-by-step explanation:</u></em>
<em><u>So for number 5 your going to multiply 8 and 12</u></em>
<em><u /></em>
<em><u>8 x 12 = 96</u></em>
<em><u>So the answer for 5 is </u></em>
<em><u>Answer: 96</u></em>