What is the vertex and what does it represent on the graph

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

Solve -3 (r + 5) = -9 enter ur answer in the box x = __

In his stamp album ,jamal has 48 new stamps and 72 used stamps. which ratio can be represented by 3/5