Answer:
106
Step-by-step explanation:
angle c = 180-74 = 106
Answer:
Step-by-step explanation:
r = 
Using the geometric series formula for the <em>n</em>th term:

Answer:
20.667
Step-by-step explanation:
80% like crisps
75% of the 80% like chocolate.
What percent of the total are the children who like chocolate and crisps?
75% of 80% = 60%
This 60% of children like chocolate and crisps