Maria studied the traffic trends in India she found that the Number of cars on the road increases by 10% each year if there were 80 million cars in year one of her study how many cars were on the road in year three compared to year two

Really need on these. i have no idea what to do

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²