how to solve through excel

The expected dividend is $2.50 for a share of stock priced at $25. What is the cost of equity if the long-term growth in dividends is projected to be 8% ? None of the above Question 7 The past dividend is $3.50 for a share of stock priced at $40. What is the cost of equity if the long-term growth in dividends is projected to be 10% and the flotation cost is $5