Answer:
n = 8
Step-by-step explanation:
-2n - 13 = -3n - 5
-2n + 3n = -5 + 13
n = 8
Hope this helps. Have a nice day!
Sry can't answer your question but I'll keep trying to figure it out :(
Simple...
you have:

To make this into an improper fraction-->>
1.) Multiply whole number by denominator
2.)Add the number you got plus the numerator
3.) Use the original denominator to finish your improper fraction
Example:

4*9=36
36+4=40

Thus, your answer.
I honestly don't know because i'm only in sixth grade but I think that it might be 30*.
To determine the time it takes for the penny to reach the ground, we use the relation of height and time given above. We do as follows:
<span>
0 =−4.9t^2+(0)t+150
t = sqrt( 150/4.9)
t = 5.53 s
Hope this answers the question. Have a nice day.</span>