Find the product of (3x+8)^2

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get 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

To decrease an amount by 16% what single multiplier would you use