Hi Im having trouble with these 4 questions. Can you please show me the working out in order to complete them? thanks

Onkaparinga Ltd just paid a dividend of $1.95 per share. The dividends are expected to grow at a constant rate of 4.1% per year, indefinitely. If investors require a return of 10.2% on Onkaparinga shares, what is the current price? What will the price be in three years?Coolumbooka Pizza Ltd has an odd dividend policy. The company has just paid a dividend of $4 per share and has announced that it will increase the dividend by $5.00 per share for each of the next four years, and then never pay another dividend. If you require a return of 12% on the company's shares, how much will you pay for a share today? Jenny is analysing the shares of Omega 3. Omega 3 pays an annual dividend and has just paid this year's dividend of $0.85. The market price of each of these shares is $12.14. Jenny thinks that Omega 3 will increase dividends by 7% per year indefinitely. After analysing the risk profile of Omega 3, Jenny has decided to only invest in the shares of Omega 3 providing she gets an expected annual return of 13%. Should she buy Omega 3 shares or not? What is the implied rate of return on the shares?Suppose a share had an initial price of $61, paid a dividend of $1.4 per share during the year and had an ending share price of $69. Compute the percentage total return. What was the dividend yield? The capital gains yield