a = int(input("Class A tickets sold: "))
b = int(input("Class B tickets sold: "))
c = int(input("Class C tickets sold: "))
print("Total income generated: $"+str((a*20)+(b*15)+(c*10)))
I hope this helps!
<span>make periodic adjustments on an as-needed basis. </span>
Answer:
The British inventor Fox Talbot produced his first successful photographic images in 1834, without a camera, by placing objects onto paper brushed with light-sensitive silver chloride, which he then exposed to sunlight.
Explanation: