Answer:
b = 13
Step-by-step explanation:
Divide 143 by 11
Given a group of
n object. We want to make a selection of
k objects out of the n object. This can be done in
C(n, k) many ways, where

,
where k!=1*2*3*...(k-1)*k
Thus, we can do the selection of 3 cd's out of 5, in C(5,3) many ways,
where

Answer: 10
Number of people adopted a mantee through Fia's foundation = 40
30% more are people adopted a manatee
Number of people adopted = 30% of 40 = (0.30)(40) = 12
People adopted a manatee this year = number of people + 30% of 40
People adopted a manatee this year = 40 + 12
People adopted a manatee this year = 52
Answer:
£2.38
Step-by-step explanation:
2.5 cost £1.40
4.25 cost £ x
so x=(4.25*1.40)/2.5=5.95/2.5=£2.38