Original sentence: Black began his business career at age ten, when he and his friends borrowed a lawnmower and started Best Friends Lawn Service in the projects of Dallas,charging $2 per lawn and eventually becoming "the first in the neighborhood to get a power mower
Edited sentence: Black began his business career at age ten, when he and his friends borrowed a lawnmower and started Best Friends Lawn Service in the projects of Dallas,charging $2 per lawn, and eventually becoming "the first in the neighborhood to get a power mower