14(d/2-9)=175 please algebra sucks

What is the first quartile of this data set? 10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38 a. 12 b. 19 c. 29 d. 10

Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?