Question: 2. a. Write a SELECT statement that answers this question: Which invoices have a payment total that's greater than the average payment total for all

a. Write a SELECT statement that answers this question: Which invoices have a payment total that's greater than the average payment total for all invoices with a payment total greater than 0?

b. Return the invoice_number and invoice_total columns for each invoice. This should return 20 rows.

c. Sort the results by the invoice_total column in descending order.

can you please solve these a,b,c as it is from the data base systems of computer science.

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