when rounding numbers: if it's four or less, you round down. if it's five or more, you round up. 9 is bigger than 4, so the nearest whole number is 830.
1,2,4,5,10,20,25,50,100 are all the positive divisors of 100. However, rather than straight up multiplying them in random order, I will multiply the opposite ends with each other (100*1, 2*50, 4*25, 5*20) and then multiply 10.
100*1=100
2*50=100
4*25=100
5*20=100
100*100*100*100*10= 1,000,000,000
Answer: 1,000,000,000
A. 4:5. Every time he gets 4 apples (the number that comes first) 5 oranges follow
Answer: 
Step-by-step explanation:
We have two circles:
Cirlce 1, with a radius
and area
:

And Cicle 2, with a radius
and area
:

Since Circle 1 is inside Circle 2 and assuming the area of the shaded region is the shown in the attached image, its area is:



Finally:

Answer:
The analysis that is not useful for evaluating whether the increase in sales is statistically significant is to calculate precision of the prediction.
Step-by-step explanation:
" A sales promotion entails the features via advertising and or a discounted price of a particular product or service"