P=2*(l+w)
p=2l+2w
2w=p - 2l
w= (p-2l)/2
Answeri think its b lmk if im right or wrong :)
Step-by-step explanation:
Answer:
Option d. $22154 is the right answer.
Step-by-step explanation:
To solve this question we will use the formula 
In this formula A = amount after time t
P = principal amount
r = rate of interest
n = number of times interest gets compounded in a year
t = time
Now Lou has principal amount on the starting of first year = 10000+5000 = $15000
So for one year 

= $15900
After one year Lou added $5000 in this amount and we have to calculate the final amount he got
Now principal amount becomes $15900 + $ 5000 = $20900
Then putting the values again in the formula



So the final amount will be $22154.
First do
3x + -5x = -2x
Then do
-2x + 5x = 3x
Lastly do
3x+1