Answer:
option D is the correct answer
hope it helps you
make me brainliest if u are satisfied with this answer
Answer:

Step-by-step explanation:
The missing details in the question are:


Required
The perimeter
This is calculated as:

So, we have:

Open bracket

Rewrite as:

X - $5 bills
y - $10 bills
x + y = 12
y = 5x
x + (5x) = 12
6x = 12
x = 2
y = 5(2)
y = 10
10 $10 bills and 2 $5 bills
Answer:
x=143/40
or
x=3.575
Step-by-step explanation: