Please Help me with this . Serious answers only.

(a) The interior angles of any triangle sum to 180° in measure. So

(8x + 2) + 70 + 60 = 180

Solve for x :

8x + 132 = 180

8x = 48

x = 6

(b) Evaluate 8x + 2 when x = 6 :

8•6 + 2 = 48 + 2 = 50

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1

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