Find the number of permutations in the word “freezer".

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

What is this inequality notation? t is less then or equal to 2

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1