Tinker bell flew a distance of 4.5 miles convert that distance to kilometers 1 mile = 1.609 plzzz me i don't get it

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Multiply. write your answer in simplest form. 3/8 x 5/7

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