The new fuction would be f (x)= 4000x -12000. It would take 3 weeks to pay off the expense.
Sure:
90 year old parents : 60 year old children (had kids at 30; very reasonable)
60 year old parents : 40 year old children (had kids at 20; unlikly but possible)
45 year old parents : 30 year old children (had kids at 15; very unlikly but not impossible)
64 questions are on the test
5. D (the number under the square root symbol must be greater than or equal to 0.
