Answer:
The bulb will last less than 800 hours is 0.550
Step-by-step explanation:
Answer:
or 
Step-by-step explanation:
We need to divide 300 by 20.
We get
or
.
I don't know what you mean by unknown factor but a quotient is the answer of a division problem
The circumference of a circle is calculated through the equation,
C = 2πr
where C is circumference and r is radius. For this item, I assume that 12 in is the radius such that,
C = 2π(12 in) = 24π
Thus, the circumference of the circle is 24π inches.