The answer for 12 is x>3
The answer for 14 is z<-3
a- is -28 and i’m working out the rest for you now
all students = 150
M = 60
S = 45
M and S = 25
(a) At least one of the two requirements:
M or S = M + S - (M and S) = 60 + 45 - 25 = 80
(b) Exactly one of the two requirements:
(M or S) - (M and S) = 80 - 25 = 55
(c) Neither requirement:
(all students) - (M or S) = 150 - 80 = 70
The answer is
<span>y = four thirdsx + 8
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