In the given scenario, which of the following statements is the dependent variable?

The size of a pair of shoes depends on the size of a person's feet.

In the given scenario, which of the following statements is the independent variable?

The size of a pair of shoes depends on the size of a person’s feet.

The size of a pair of shoes depends on the size of a person’s feet. If Louie’s feet size is 10 inches, what will be the size of a pair of shoes he should buy?

In the given scenario, which of the following statements is the dependent variable?

Louise bought 12 eggs because she will make 2 tubs of leche flans.

In the given scenario, which of the following statements is the independent variable?

Louise bought 12 eggs because she will make 2 tubs of leche flans.

Louise bought 12 eggs because she will make 2 tubs of leche flans. If shewill buy 3 dozens of eggs, how many tubs of leche flans can she make?

Nathan can n finish 3 episodes of a Korean drama series in 3 hours. How many hours must he spend if he wants to finish 12 episodes?

What is the mathematical statement of the statement below? 

A 4 ft coconut tree (h) was planted in 2018 and has grown at an average rate of 1/2 foot per year(y).

In the situation "A 4 ft coconut tree (h) was planted in 2018 and has grown at an average rate of 1/2 foot per year(y)", what will be the height of the tree in 2025?

An elementary school had 3,500 pupils enrolled in 2015 and 3900 pupils in2017. If the pupil population P grows as a linear function of time t, where t is the number of years after 2015, what is the linear function?