Answer:
p = 0.70z
Explanation:
p is the food the penguins eat
z is the food the zebras eat
We are told that: p < z
Then we are told that: p = 70% of z
This can be written as p = 0.70z
An alternative way this can be written is: p/z = 0.70 [The ratio of p to z is 0.7]