What is the simplified answer to 5+3w+3-w

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

What is the value of x in the this question ?

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250