Answer:
replace()
Explanation:
The history object in javascript corresponds to browsing history.
It has the following methods for navigating through the history list:
back(): Go back in the history list
forward(): Go forward in the history list
go() : Navigate to the currently pointed url in the history list. It takes a parameter which can either be a numeric index or a string which is matched with the history list content.
replace() is not a method in the history object.
Answer:
b. displaying hourly costs
Explanation:
Displaying hourly costs would be very useful for parking staff because it would allow customers to understand how the charge for the service was made, without the need for an employee to have to explain it. In this way, work becomes less stressful and more optimized.
Hmm..This is a tough answer it all depends on how the students use their cell phones and if they can handle the privilege...And if they could "Sure why not" and you should monitor the students too