Answers:
5.
$ 15,
$ 20
6.
7.
a )
= 25 + 1250
;
= 30 + 995
b )
K nights:
f ixed
=
1 250,
v ariable=25
Legions:
f ixed=995,
v ariable=30
c )
K nights=$2375
;
L egions=$2345
8.
a )
2 x+y-‐7=0;
A =2,
B =1,
C =-‐7
b )
3 x-‐4y-‐8=0;
A =3,
B =-‐4,
C =-‐8