PLEASE HELP LAST THING I NEED ON MATH WILL GIVE BRAINLIEST, THANKS AND 5* VOTE

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B=100

b=15.7

a=12.25

Step-by-step explanation:

first find the missing angle:

B=180-50-30

B=100

then use the law of sines:

then

use the same way to find the other side

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