Think about it do you think it's subtraction or addition?
Answer:
B
Step-by-step explanation:
Hello,
Yes of course 0.4 or 4/10 is a rational number :)
Have a nice day :)
Answer= 16
Work=
1. Multiply each side by 1/5 (aka divide them by 5). This leaves 3, 4 and 9.
2. Add all the sides. 3 + 4 + 9 = 16. That is the perimeter
D is the answer just took test
