last month I joined an online strategy game. when I joined there were 20 members, since then the number of members has decreased by 80% how many members are there now​

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

At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.