Tony started his math project at 1 : 57 p. M. 1:57 p. M.1, colon, 57, start text, space, p, point, m, point, end text and finished the project 80 8080 minutes later. Tony has band practice at 4 : 00 p. M. 4:00 p. M.4, colon, 00, start text, space, p, point, m, point, end text How much time did Tony have between the end of the project and the beginning of band practice? minutes