You roll a regular die. What is the probability of rolling an even number? SIMPLIFY, IF NECESSARY. SHOW ALL WORK

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.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.