A system of equations is shown below. Equation 1: 2 x − y = − 8 Equation 2: x + 2 y = 6 To begin solving the system of equations, Equation 1 is multiplied by a value of 2 to create Equation 3. Equation 3: 4 x − 2 y = − 16 Equation 2: x + 2 y = 6 Which procedure could best be used to eliminate one of the variables?

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Quadrilateral abcd is translated up and to the right, and then rotated about point q. which congruency statement is correct?