Help 10 points for correct answer

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Find the solutions for a triangle with a =16, c =12, and b = 63º

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