Step $7.$

The count method on a DataFrame or Series counts the number of non$-$missing $($non$-$empty$)$ entries in each column.

Write a statement using the count method that computes the number of pizzas with $5$ toppings $($i$.$e$.,$ the number of pizzas

for which the entry in "Topping #$5"$ is not empty$),$ and assign it to the variable num$5.($There are a couple ways you can do

this: $(1)$ you can first extract the "Topping #$5"$ column from the dataframe as a Series, and then compute the count, or $(2)$

you can compute the counts for the entire dataframe, and then extract the count for "Topping #$5".)$