Answer:
the answer is definitely 4
Over which interval(s) is the function decreasing?
If the probability of her having the winning ticket is 1., which equals 100%, then that means she bought all the tickets, so 1000 tickets
The answer is 72 (--> second choice).
I can prove it without calculator so you believe me:

Answer:
800,000
Step-by-step explanation:
If the number was above 850,000 it would round up. If the number was 849,999 or below it would round down. In other words, you look at the number to the right of the hundred thousands place, or the number in the tens of thousands place, and if it is 5 or above you round up. 4 and below you round down.