6 friends all use $2 off coupons to buy themselves movie tickets. They spend a total of $42 Write the equation

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.

Anyone know? is appreciated! will mark brainliest if correct!

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2