Kendra is participating in a read-a-thon to raise money for her local library. One person donates $30, while another pledges $0.05 for each page she reads. If Kendra raises $40, she will earn a prize. To find the number of pages, n, she must read to earn her prize, Kendra wrote this equation.
30+0.05n=40
What is the number of pages Kendra must read to earn her prize?
A. 20 pages
B. 770 pages
C. 200 pages
D. 1400 pages