dalegauvin dalegauvin 06-10-2022 Mathematics contestada During a sleepover, Carissa played karaoke with her friends. Her song was 6 minutes long. She had already sung for 4 minutes. Which equation could be used to see how much longer she will have to sing? x + 2 = 6 x + 4 = 10 x + 4 = 6 x − 4 = 6