The exchange rate is £1=$1.54 how many £ would i get for $77

Which triangles area would be calculated using the trigonometric area formula

What is the number 321,000,000 in scientific notation? also what is the number? ?

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