Answer:
Leila biked 28 miles.
Step-by-step explanation:
So the easiest way to go about this is to do it backwards
Let's start with Dani:
he biked 18 miles
Noelle:
Dani's biking was
1.) 3x slower than Noelle's - we need to do the opposite to find Noelle's (18 * 3 = 54)
2.) 2 less than Noelle's - we do the opposite again (54 + 2 = 56)
Noelle therefore biked 56 miles
Leila:
If Noelle biked twice as many miles as Leila, that means that Leila biked half as many miles as Noelle
Noelle biked 56 miles and half of that is 28