SECTION B 21. The Venn diagram below shows the number of pupils who like Math (M) and
Science (S) in a P.7 class.
n( €)
(a) If 36 pupils like only one subject,
M
S
find the value of y. (3marks)
44-8
12
y+4
2y
(b) What is the probability of choosing a pupil who does not like Science?
(2 marks)​

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18