How many 4-letter code words are possible using the first 8 letters of the alphabet with no letters repeated? how many codes are there when letters are allowed to repeat?

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

What is the probability of rolling a single die greater than 4

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)