What is work shown for 4n - 9 = -9

Plz i want answer and i would appreciate it is is a b c or d

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

You are saving to buy a bicycle; so far you save 55.00. the bicycle costs 199.00. you earn 9.00 per hour at your job. which inequality represents the possible number of h hours you need to work to buy the bicycle?