I NEED THE ANSWER ASAP! IT'S DUE TOMORROW!! :(
What does this mean?
6 minutes < / ≤ 7 minutes
(I'm working with a step graph about the length and costs of phone calls, BTW)
Here's a question for it:
Find the charge for any phone call with the length (/) that has the following values: 6 minutes < / ≤ 7 minutes.