Help please
In 2003, 50% of the 64 members of an environmental group voted to protest a new development. In 2004, with a membership of 85, 40% voted to protest the same development. How many more members voted to protest the expressway in 2004 than in 2003?
a. 0 members
b. 2 members
c. 32 members
d. 34 members
Show work please