instruction: How many accounts are opened in each day for all accounts by the customer with first name 'Meaghan' ? Bin the account open day by weekday in a bar chart, and order y-axis in descending order.
response: SELECT date_account_opened, COUNT(date_account_opened) FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.customer_first_name = 'Meaghan' ORDER BY COUNT(date_account_opened) DESC