The distance between (0, 0) and (0, -4).

4

Step-by-step explanation:

Step 1: Locate the coordinate points

Point 1= (x1, y1) = (0, 0)

Point 2=(x2, y2) = (0, -4)

To find the distance between two given points, Formula is:

√(x2−x1)2 +(y2−y1)2

Step 2: slot in the values

Distance between two points

= √(0-0)2 + (−4 −0)2

= √(0)2 + (−4)2

= √0 + 16

=√16

= 4

Distance between points (0,0) and (0,-4) is 4

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads