Tummy tuck question!

Hello there girls! I had a question, I’m think of getting a tummy tuck very soon and I was wondering if i can get a tummy tuck if i have a mastopexy. Will the scar of the mastopexy get lower and will my breasts get lower as well? I’m asking since I have had a coworker tell me she had a breast augmentation before her tummy tuck and that her breasts got lower and I was wondering if it was the same with the scar?