Sherlock wants to rent a textbook. he has to pay a fixed base cost plus a daily rate for renting the textbook. the table shows the amount of money, y, in dollars, that sherlock has to pay for renting the textbook for x days:

textbook rental

number of days
(x) rent (dollars)
(y)
0 6
1 13
2 20
3 27
4 34

which equation best shows the relationship between x and y?
y = x + 13
y = 7x + 13
y = x + 6
y = 7x + 6

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

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