80 tickets have been given out
50*.4=20
50*.6=30
30*2=60
60+20=80
Answer:
fyi b's answer has imaginary numbers in it...
Imaginary: 1 +
Imaginary: 1 -
Step-by-step explanation:

=
... the negative root will produce imaginary solutions
Answer:
Part A = 64 feet
Part B = 79 feet
Step-by-step explanation:
Part A
10 × 2 = 20 = Diameter
Formula is C = π × diameter
20 × π = 62.8318530718 feet = 64 feet
Part B
25 × 2 = 50
Same formula
50 × π = 157.079632679 feet
157.079632679 ÷ 2 = 78.5398163395 feet = 79 feet
divide by 2 because it is a semi circle
Hope his helped :)