Answer: IXL is meant to be a practice
Which means it will give you the answer if you get it wrong and won't loose any points or grades but if you really need help go back to the homepage then start answering questions from NO. 1 and with that the questions will get easier :)
That comes to 225.65 / 6.25
= 36.1 hours
Here is an example(i don't really know how to explain)
It is a conversion factor.
For example to convert from eett to inches you multiply by 12 in/ft, which is the conversion factor.
For what? Sorry is there an attachment?