Option D. 2(n + 9) is the right answer
Step-by-step explanation:
The word problems are converted into mathematical problems to solve simply.
for the given problem
"two times the sum of a number and 9"
Let n be a number then
when there is and between two things they are performed first then next operation is performed so
the sum of a number and 9
Then
two times the sum of a number and 9
Hence,
Option D. 2(n + 9) is the right answer
Keywords: Mathematical notation
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Answer:
x 
3
Step-by-step explanation:
if x = 3 then the rational expression 4 / (x - 3) is undefined
because we get 4/0 = undefined .
I guess maybe 5/35 because there are only 5 chances that you could get one of the 5 in the 35 people
32b+12
32 and 12 is both divisible by 4 so divide them by 4 and the answers in parentheses
4(8b+3)
Let the average profit or loss in year 2006 be x millions,
The average profit for the 8-year period, is the total sum of the profits (or losses) of each year, divided by 8:
so we have:
x=8-10.45=-2.45
Answer: the loss in 2006, was 2.45 million dollars
