Need with a b and c do work for me

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

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.