Select all angles that are congruent to 27 by the appropriate reasoning. 7 5 8 3 1 4 2 C a D Angle 4 by Vertical Pair Angle 6 by Vertical Pair Angle 3 by Corresponding Anlges Angle 5 by Corresponding Angles Angle 5 by Linear Pair Angle 2 by Alternate Exterior Angles

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.