Answer:
No, the student is not correct. The correct expression is 9(n+13).
Step-by-step explanation:
"9 times the sum of a number and 13" means you must multiply 9 by the sum, not just by the number. 9n + 13 would be "the sum of 9 times a number and 13." Slightly different wording.
Given expression is
Now we need to simplify this expression. We can begin by factoring numerator and denominator if possible.
divide numerator and denominator both by 2v
Hence final answer is 
Or you can also keep factored form
Answer:
17 cm
Step-by-step explanation:
P=2L+2W
L=22, P=78 we want to find W
78=2(22)+2W
78=44+2W
34=2W
W=17 cm
Answer:
1,2,3,4,5
Step-by-step explanation:
Every whole number is a rational number.
The answer is 6
hope this helped
