Answer:

Step-by-step explanation:
This is basic trigonometry.




And finally perimeter (p):

Answer:
$47,360
Step-by-step explanation:
8 percent X 8years is equal to 64percent
74,000 X 64/100=47,360 dollars
6 I do believe so hope this helps!
So what I did for this problem I added as a comment. check it out.
15*5=75
79-75=4
If Luis gives each of his classmates 5 pencils each, he will have 4 leftover to give to his teacher
16*4=64
79-64=15
If Luis gives himself AND each of his classmates 4 pencils each, he will have 15 leftover to give to his teacher
So... If Luis decides to take an equal share of pencils along with his classmates, his teacher will receive more pencils.