SQL Queries I need help with, ANY HELP WOULD BE APPRECIATED.

1. Write a SELECT statement that returns the following

the customer's name along with a count of the number of services each customer ordered

Return one row for each customer that ordered more than one service. Group and sort the result set by the last name and then by the first name. 

2. Write a SELECT statement that returns the following

Last Name, First Name, and Service description columns of each customer that has a unique service.

In other words, do not include customers who have the same service as another customer. Sort the results by Last Name and then by First Name 

3. a. Write a CTE query that returns the most recently created active promotion by service with these columns:

The Service ID, promotion code, promotion description, and date record was created

b. Using the CTE, write a SELECT statement that returns one row per customer that shows the order details for service(s) with a promotion

Return the Last Name, First Name, service, quantity and order date for the customer

Also include in the result, the service ID, promotion description and promo created date from the CTE

For all queries, sort the result set

please use entity and attribute names provided as its what I named mine, again thank you so much!

\begin{tabular}{|l|l|} \hline \multicolumn{2}{|c|}{ PAYMENT } \\ \hline PK & PaymentID \\ \hline & PaymentType \\ AccountNum \\ RoutingNum \\ CreditCardNum \\ CCExpDate \\ CCSecurityNum \\ Status \\ CreatedDate \\ \hline \end{tabular} \begin{tabular}{|l|l|} \hline \multicolumn{2}{|c|}{ PROMO_SVC } \\ \hline PK & PromeServID \\ \hline FK & ServicelD \\ FK & PromoCode \\ & CreatedDate \\ \hline \end{tabular} \begin{tabular}{|l|l|} \hline \multicolumn{2}{|c|}{ PROMOTION } \\ \hline PK & PromoCode \\ \hline & PromoDescriptionStartDateEndDateStatus \\ \hline \end{tabular} \begin{tabular}{|l|l|} \hline \multicolumn{2}{|c|}{ INVOICE } \\ \hline PK & InvoicelD \\ \hline FK & CustomerID \\ FK & OrderID \\ FK & EmployeelD \\ & SubTotal \\ TaxAmount \\ TotalAmount \\ InvoiceDate \\ \hline \end{tabular} \begin{tabular}{|l|l|} \hline \multicolumn{2}{|c|}{ CATEGORY_SVC } \\ \hline PK & CategoryID \\ \hline & CategoryName \\ \hline \end{tabular} CellPhone Title DateOfHire