Answer:
Step-by-step explanation:
The formula for an area of a circle is pi•r^2.
The diameter is 16, so the radius (half of the diameter) is 8. plug that into the formula and you get 64pi, or roughly 200.96
Ok so I'll show u how to do number 7
So 12 and one third basically equals 12+(1/3)
Now in order to add this to another fraction, we need to make the mixed numbers in improper fractions
So 12 and (1/3)=(36/3)+(1/3)
And 9 and (2/3)=(27/3)+(2/3)
Ok so the first number (or 12 and (1/3)) basically equals (37/3)
The second number (or 9 and (2/3)) equals (29/3)
Now that we have the two numbers with common denominators, we can do the math.
(37/3)-(29/3) is the same as (37-29)/3
So simplifying would be
(8/3) or 2 and (2/3)
Hoped this helped
It is 49 i did it like 5 times to check there you go buddy
