In this task, you need to count the number of times the given letter appears in the given sentence.

Sentence: 'a plastic tray that has different foods inside of it'. Find frequency of the letter 't'
6

Sentence: 'two giraffes standing next to some trees'. Find frequency of the letter 'f'
2

Sentence: 'two hot dogs in foil loaded with toppings'. Find frequency of the letter 'p'
2