Please help me.:)

Consider four different stocks, all of which have a required return of 15 percent and a most recent dividend of $3.30 per share. stocks w, x, and y are expected to maintain constant growth rates in dividends for the foreseeable future of 10 percent, 0 percent, and –5 percent per year, respectively. stock z is a growth stock that will increase its dividend by 20 percent for the next two years and then maintain a constant 12 percent growth rate thereafter. what is the dividend yield and capital gains yield for each of these four stocks?