Apool of possible jurors consists of 14 men and 10 women. how many different juries consisting of 5 men and 7 women are possible?

Number of combinations of 5 from 14  = 14C5 = 14*13*12*11*10
                                                                              =   2002
                                                                              5*4*3*2*1

for the women its 10C7  = 10*9*8 / 3*2*1 =  120

so possible number of juries = 2002 * 120 =  240,240

B. 2 1/2 feet. multiply 2.5 inches by 12 to get thirty inches then divide by 12 to get 2.5 feet