Can somebody please help me with this!!

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

Phoebe runs a t-shirt printing business. she ships the t-shirts to retailers in boxes of 200. she has two automated printing machines that can print designs on t-shirts. one machine can print 200 t-shirts in 50 minutes. the other machine can print 200 t-shirts in 150 minutes. if the two machines work at the same time, they can print 200 t-shirts in ….. minutes.