Show that if a, b, c, and m are integers such that m ≥ 2, c > 0, and a ≡ b (mod m), then ac ≡ bc (mod mc). rosen, kenneth. discrete mathematics and its applications (p. 259). mcgraw-hill higher education. kindle edition.

step-by-step explanation:

u bout ugly as   a mf

step-by-step explanation: lol

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