Dan should buy 8 tomatoes because then he can make 32 slices which is more than enough to put on the sandwiches.
Step-by-step explanation:

Answer: The waiting time will be 32 minutes when 240 people in line.
Step-by-step explanation:
Let us assume that the waiting time is directly proportional to the number of people in the queue.
Equation of direct proportion between variables x and y : 
Put
to find
.

Hence, the waiting time will be 32 minutes when 240 people in line.
Answer:
7?
Step-by-step explanation:
I think...
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