2n+5...a couple is two people so you need to multiply the number of couples, n, by 2 to get the total number of dancers. Then add the total number of organizers.
Answer:
The answer is 1
Step-by-step explanation:
-50+50=1
Answer:
21
Step-by-step explanation:
s=2
so, v=2+19
19+2=21
Answer:
739.47
Step-by-step explanation:
height - h, radius -r
V=hπ²r=5×3.14²×15=739.47
