Answer:
8 Hours
Step-by-step explanation:
We know she travels 220 miles in 5 hours, so lets create an equation with a ratio which finds the miles she drives in a single hour, multiply that by x, and then set it equal to 352.

Multiply both sides by 5

Divide both sides by 220

Therefore it would take 8 hours.
It’s bevause you can see what you are doing instead of doing it all of your head which could get messed up.
System B has no solution.