Question

NEED HELP PLEASE!!!! Explain your work! Will give brainliest :)

Answer 1

exact form is 9/2 
decimal form is 4.5
mixed number form is 4 1/2

Answer 2

(1/2-²) +1/2            
(1/0.25) + 1/2        Divide 1 by 0.25
4+1/2
 4 1/2

The fourth one is the answer.