Answer: 
Step-by-step explanation:

Answer:
1. .900+.020+.008, 2. .700+.030+.001, 3. 4.5, 4.56, 4.565656, 4.6
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Because I know how to do it
a^2 + b^2 = c^2
9^2 + 7^2 = get the answer then find the square root of it