What is X? HELP I NEED ANSWERS!

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.