4(3n-2)=what and explain by righting out. each step

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i