I need more information before i can answer the question <span />
c. 4.6
21 X .22= 4.6
Calculating the variance requires finding the product of 21 and 22%. To make this easier we convert 22% into it's decimal form and construct the equation. To back check this answer we can use 10% of 21 voters which equals 2.1% then double that amount to reach 4.2%, knowing that we now have a close approximation of the variance we can eliminate answers a, b, and d, leaving c as the only logical choice.
Answer:
-1
Step-by-step explanation:
because the bigger the number with the negative sign in front of it the smaller the number
8 times 15 is 120. just multiply the number of kids by the number of teams