Select the contexts that could be modeled by a linear function. Susan adds $50 to a savings account each week.

The value of David's car decreases by 11% each year.

The amount Ariel and Miguel pay to rent a car for $40 a day

The price of a stock each week is 105% of its price from the previous week.

Monica pays $700 for car insurance the first year and pays an additional $10 per year.

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Which of these triangle pairs can be mapped to each other using two reflections?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.