Answer:
130*
Step-by-step explanation:
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
Learn more about mathematical notation at:
#LearnwithBrainly
Answer: C or 2 seconds.
Step-by-step explanation:
To find the vertex in a standard form equation: (-b/2a,f(-b/2a))
plug it in: -64/2*-32 = 2
21,000 + 0.07(21,000) = 21,000 + 1,470 = 22,470
Answer:
the answer is the 3rd & 5th one for anyone doing this question ; )
Step-by-step explanation:
I just did this question
It's right i just checked