Endangered species

Question

Group number
clams 62
birds 14 more than clams
mammals 9 fewer than birds
fish 70
insects half as many as fish
reptiles 21 fewer than insects
snails 10 more than reptiles

Write an inequality to compare the number of endangered birds and clams

Answer 1

I have letters representing each species.
Replace each letter with the number representing the specie.
There are 62 Clams. There are 70 Fish.

C=62
B= 14+C
M= 14+C-9

F=70
I= 1/2*F
R= 1/2*F-21
S= 1/2*F-21+10

Answer 2

62 < ( 62+ 14 )