Taking successive discounts of 15% off and then 25% off is the same as taking a one time discount of 40%

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?

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