Answer:
1. x is greater than 0.
2. What would the inequality look like if at least every person bought at least one hot dog at the fair?
Step-by-step explanation:
1. The open circle on the line graph means that the sign will be greater than.
Open circle will always be greater than or less than. (Whether is greater or lesser depends on which way the arrow is pointing. If the arrow is pointing the right, it will be greater. If its pointing to the left, it will be lesser.)
Closed circle will always be greater than or equal to, or less than or equal to.
Since the arrow is pointing towards bigger numbers than the given value (zero), this give us x is greater than 0.
2. This part just takes a bit of creativity. You have to find a way to ensure that whatever value is calculated by the word problem would work as x in the inequality x is greater than 0.
Hope this helps... good luck!