Its 4 because 2+2 is 4 and then you're subtracting 2 and then adding 2 again so its 4
Simple.....
you have:
-3ab--->> a=-2 b=-5
Or-->>
-3(-2)(-5)
Simplify....
-3(10)
-30
Thus, your answer.
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:
D
Step-by-step explanation:
the rest of them have 2 Y for 1 X
I would say c or d. but since its multiple choice, its ok to guess sometimes.