An automobile insurance company claims that teenage drivers save on average $410 per year when compared to the same coverage from another company, with a standard deviation of $55 per year. Natalia is a teenager and a customer of this company and her average savings was $390 per year. What is the z-value for Natalia’s savings rounded to the nearest hundredth?

Convert 2000 swiss francs to dutch guilders

As part of an annual fundraiser to raise money for diabetes research, diane joined a bikeathon. the track she biked on was 1,920 yards long. diane biked 38.5 laps. her sponsors agreed to donate an amount of money for each mile she biked. how many miles did she bike? first fill in the blanks on the left side using the ratios shown. then write your answer. given ratios: 5280ft / 1 mi , 1 mi /5280 ft , 1,920 yards / 1 lap , 1 lap / 1,920 yards , 3 ft / 1 yard , 1 yard / 3 ft. blanks: 38.5 laps / 1 yard x (blank) x (blank) x (blank) = (blank) miles i'm really confused on how to do this, and the explanations aren't exactly . if you could walk me through how to do this, it would be greatly appreciated.

Abcd is a square. what is the measure of angle bac