Crystal lets them know how many workers she needs for each day of the week.In the short run, these workers are Variable inputs, and the ovens are Fixed inputs.
Explanation:
Production function of a product defines the relationship between the quantity of inputs required to produce a good and the quantity of output produced by the given inputs.
The Commonly used inputs in production are land, labor, and capital.
Fixed Input: Fixed input are those inputs whose quantity does not change with the quantity of the output produced
Variable Input: Variable input are those type of input whose quantity varies with the quantity of the output produced.
In the above question we can see that
Crystal's decision regarding how many workers to use can vary from week to week because her workers tend to be students.The workers are the variable inputs.
Crystal's kitchen cannot fit more than four ovens, Crystal cannot change the number of ovens -The ovens are the fixed Input