- if you simplify it you would have to find factors of 45 that are perfect squares, for example, the square root of 9 times the square root of 5 is the square root of 45 so if you want to simplify it you would need to take the square root of 9 which is 3
so if you put in simplest form you would get 3 root 5

Answer:
4
Step-by-step explanation:
÷ 
(20-4) ÷ 4
16 ÷ 4=4
Answer:
2 11/15
Step-by-step explanation: