Which of the following correctly justifies statement 4 of the two-column proof? A. Corresponding Angles Theorem
B. Transitive Property of Equality
C. Vertical Angles Theorem
D. Substitution Property of Equality

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236