AB = 4x + 25, BC = 3x-2. AC = 9x-5 I need help with triangle inequalities and algebra​

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Find the multiplicative inverse of 8-12i

Answer pls man im trying to get out of summer school