What is the answer to 7a,7b, 7c, 7d, and 8a, 8b, 8c

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

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64

if the angular bisector of an triangle bisects the opposite side, prove that the other two sides are equal.