Knowing that your area is:

you can find the radius as:

;
With this you can evaluate the circumference as:
<span>The correct answers are: #3) 72; #4) 40,320; #5) 90.
Explanation<span>:
#3) The number of possible choices are found by multiplying the choices of flavors and the choices of toppings:
6*12=72.
#4) The ordering of 8 cards is a permutation, given by 8!=40,320.
#5) This is a permutation of 10 objects taken 2 at a time:
P(10,2) = 10!/(10-2)!=10!/8!=90.</span></span>
Answer:
D
Step-by-step explanation:
That is how you multiply properly
Answer:
24
Step-by-step explanation:
whatever you add or divide to the numerator, you do to the denominator. the same occurs the other way round,too.
If 11 is multiplied by 6 to give 66.
then, 4 should also be multiplied by 6, for the equivalent fraction. This gives you 24.
Hope this helps. Good Luck