Mrs. bull spilled coffee on her computer during the first week of school! the total cost after tax to repair is represented by 0.09(75h)+75h, where h represents the number of hours it takes to repair her computer. what part of the expression represents the amount of tax mrs. bull has to pay? explain

If you answer right ill give brainliest, : )

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

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old