Plz help me with my homework thx

Ineed here’s a picture of the question

Fill in the missing exponents in each box and show how you found the answer. (4 points: 2 points for each correct answer with work shown) c. (9^4)^? =9^1 d.(5^? )^3=5^1 *question marks represent the boxes

How many dollars more is the price of a pie than the price of a doughnut at erik’s store