Jamien

Find the four terms between 15 and 87 in the arithmetic sequence.

What are the first three terms of an arithmetic series in which a1=9,an=105,and Sn=741?

In testing blood,three types of antigens are looked for:A,B and Rh.Every person is classified doubly. He is Rh positive if he has the Rh antigen, and Rh negative otherwise. He is type A,AB,or B depending on which of the antigens he has, with type 0 having...