Which line from the story contains dialect?

Julian had been tutoring his brother all morning, and solving for the unknown variable was becoming a tedious process.
“Let’s put the algebra aside and get outside for a while this afternoon,” suggested Julian.
“Yeah, and I’ll ask Ma if I can have a couple bucks so we can buy some pops up on Lincoln.”
In a few minutes, the boys left the apartment, pulling on their baseball caps and smiling with relief.

“Yeah, and I’ll ask Ma if I can have a couple bucks so we can buy some pops up on Lincoln.”

The line that contains dialect is: "Yeah, and I'll ask Ma if I can have a couple bucks so we can buy some pops up on Lincoln."