please show original equation and work

0.07 12, You forecast that Rhino company will pay dividends of S5 at the end of the first DS5). The dividend will double in the second year (D $10) After the second yea dividends will then grow at an annual rate of 5% (For example, Ds-$105, ) What is the current price of the Rhino stock when the required/expected return is 15%