Solve the following equation for x to find the total number of people who became members of a social networking site for a certain month:

x = 0.8x + 72

How many people became members of the site that month?

112
288
360
432

360 people

Step-by-step explanation:

     x = 0.8x + 72           Subtract 0.8x on both sides

0.2x = 72                  Divide 0.2 on both sides

      x = 360

( - 4 , -7 )

all the lines must parallel  

step-by-step explanation:

coordinates of c = ( - 1 , 2 )

3 units left = ( -4 , 2 )

9 units down = ( - 4 , 11 )