The key here is to not worry too much and just follow PEMDAS.
Here we have the expression 
. Following PEMDAS, we complete the expression inside the parentheses first, or 
. This gives us 
or just 
Hope this helps.
<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.</span>
898 mm because 8.98 is a lot smaller, it's only in the ones place.
GTA LITE V2 BY WITLOPPELZGAMING
Answer: 120
"A analog clock is diveded up into 12 sectors, based on the numbers 1-12. one sector represents 30 degrees (360/12=30). if the hour hand is directly on the 10, and the minute hand is on the 2, that means there are 4 sectors of 30 degree between then, thus they are 120 degree apart (30*4=120)."
