What is 2+2 I need it for my sister

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.

What is the slope of any line parallel to the line 8x+9y=3 in the standard (x,y) coordinate plane?

Find the derivative of the function