So lets take a look at what we know:
5% of the tickets were discount
100% of the tickets is equal to 60 tickets
From this information we can create the proportion:

.
Cross Multiply to get

Divide 100 on each side to get

.
Three discount tickets were sold.
Answer:
52 tickets cost $10 and 18 tickets cost $12
Step-by-step explanation:
10x+12y=804. (1)
x+y=70. (2)
From (2)
x=70-y
Substitute x=70-y into (1)
10x+12y=804
10(70-y)+12y=804
700-10y+12y=804
700+2y=804
2y=804-700
2y=104
y=104/2
y=52
Recall
x+y=70
x+52=70
x=70-52
x=18
52 tickets cost $10 and 18 tickets cost $12
Answer:
3
Step-by-step explanation:
8-5=3 meaning he sees 3 blue birds