Answer:
Descending order
Step-by-step explanation:


Let

, where

, so that

. Then the ODE is




This is separable, so you have

Integrate both sides, solving for

if possible, then replace using

and solve for

if possible.
Answer:
Expression D has the least value
$16.37+$6.33= $22.70
You have $25 andollars you owe $22.70
$25- $22.70= $2.30
So Lucas recieved $2.30 in change