It’s for algebra 2 Please and thank

Simplify the following expression 48^1/2

Me answer this question: -2/3p + 1/5 - 1 + 5/6p i think the simplified expression is 1/6p - 4/5 correct me if i'm wrong, and explain it! if i have it right, just tell me. you so

Three runners competed in a race data were collected at each mile mark for each runner if the runner ran at a constant pace the data would be linear