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

Q: Sentence: 'the receipts from a meal at a restaurant are for  a sandwich, chili, and apple'. Find frequency of the letter 'u'

A: 1
****
Q: Sentence: 'young girl playing with refrigerator magnet while kneeling on floor'. Find frequency of the letter 'n'

A: 6
****
Q: Sentence: 'a baseball themed birthday cake is on a serving tray'. Find frequency of the letter 'g'

A:
1
****