Answer:
.6n
Step-by-step explanation:
If we get 40 % off, we still have to pay 100-40 or 60%
The original price is n
We pay 60% of n
60%*n
.60*n
.6n
Answer:
#4 = ∞
#5= no solution
#6= no solution
Step-by-step explanation:
GOOD LUCK!!!!
Answer:

area: 136 cm
perimeter: 48 cm
Step-by-step explanation:
For the first one just subtract

for the second one you just have to break it into smaller, more digestible pieces (work below)
Answer:
∠ABD=150°
Step-by-step explanation:
6c+12+51-c=178
5c=178-12-51
5c=178-63=115
c=115÷5=23
∠ABD=6c+12=6×23+12=138+12=150°