a. Write a SELECT statement that returns the following columns from the invoices table: invoice_due_date and invoice_total.

b. Additionally, add a calculation that returns 10% of the value in invoice_total and alias this calculation as initial_payment.

c. Write the same SELECT statement and additionally add a WHERE clause that limits the results to only those invoices with a total that is greater than or equal to 500 and less than or equal to 1000