72y^5 + 18y^2 what is the gcf? or is this prime?

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

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

Ineed with math stuff it involves graphs