-21.8+18.3
or 18.3-21.8
or the answer which is -3.5
1 mile = 1.6km.
so
100 miles x 1.6km = 160.
The number of km between two cities is 160km.
Im pretty sure the answer is a
Yz= bc - wx
==> z= (bc -wx) / y
The answer should be 23. Not sure if you have multiple choices, or have to show the work, but 23 is the answer.
