Súčin rokov troch súrodencov je 385. Napíšte súčet ich rokov, ak počet rokov každého z nich je prvočíslo

Can someone me with my hwplz(only the circled ones)

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )