Can you help me pls?​

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Adriana sold 50 shares of a company’s stock through a broker. the price per share on that day was $22.98. the broker charged her a 0.75% commission. what was adriana’s real return after deducting the broker’s commission? a. $8.62 b. $229.80 c. $1,140.38 d. $1,149.00

Negative 5 1/12 + negative 4 1/4 + 6 3/4