Aplumber charges $80 per hour to complete a job. she also charges an
additional fiat fee of $50 for each job. the total charge for one particular job
was $490. this situation is represented by the equation 80x-50 = 490.
how long did the job take?

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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

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76