Answer:

Step-by-step explanation:
Given:
Waiting time = 5 hours.
We need to find the number of minutes for 5 hours.
Solution:
We know that 60 minutes for each hour, so one hour is equal to 60 minutes.
For one hour = 
For five hours = 

Therefore, you will have to wait 300 minutes in a line.
Subtract the 18 from the 78 then multiply both sides by -1, then divide by 5.
Answer:
1/4
Step-by-step explanation:
This is correct on khan academy!
Charges 0.50 per mile with a 5 dollar surcharge. Spending at most 30 dollars, the equation would be:
0.5x+5
30
To find how many miles they can travel/the solution, solve the inequality:

Subtract 5 from both sides.

Divide both sides by 0.5.

They can travel (at most) 50 miles.
Hope this helps :)