55/20 = 2.75
It costs $2.75 per person
Answer:
Comprimento: 28.9 m; Largura: 11.1 m
Step-by-step explanation:
P = 2(C + L) = 80
A = CL = 320
2(C + L) = 80
CL = 320
C + L = 40
CL = 320
C = 40 - L
CL = 320
(40 - L)L = 320
40L - L^2 = 320
L^2 - 40L + 320 = 0
aL^2 + bL + c = 0







or 
L = 28.9
C = 40 - L = 40 - 28.9 = 11.1
Answer: Comprimento: 28.9 m; Largura: 11.1 m
8 and a y-intercept of 8.
If were talking about the second one it would be 8 mins because by the time 6 is down to 2 it would be 8 mins and since 10 fl oz is going down every 1 min it would be 2 fl oz by the time it is at 8 mins