Which equation shows this relationship?

How do i multiply two digit numbers

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.

Acarton of juice contains 64 ounces miss wilson bought six cartons of juice how many ounces of juice did she buy