If Your Good With SQL Queries - Please Help

Hi, ive got some work to do on SQL queries, the scenario is below and at the bottom is my attempt at answering in the questions:
Could somebody simply tell me if the answer at the bottow are correct, if not what I have done wrong.

A local company that produces machine parts has decided to develop an in-house database system. They have identified the following tables: -

tblOrders OrderNo, CustomerNo, Date, OrderTotal

tblCustomers CustomerNo, Name, Street, Town, County, Postcode

tblParts PartNo, Description, UnitCost

tblItems OrderNo, PartNo, Quantity, ItemTotal



Create SQL queries to produce the following: -

a) Details of all orders over £1000 sorted by customer
number.

b) A list of all part descriptions and their quantities appearing on order 39

c) Delete all orders placed by customers in
Wrexham.

d) Archive all orders placed by customer Clarke into a new table called
tblArchive.

e) Increase the price of all parts whose description includes the
word “washer” by 4%.

These are my answer, which im not too sure if they are correct. If any1 could tell me if there correct or not that would be great, thanks.

a)
SELECT *
FROM tblOrders
ORDERBY CustomerNO
WHERE OrderTotal > 1000

b)
SELECT tblParts.PartNo, tblParts.Description, tblItems.Quantity
FROM tblItems INNER JOIN tblParts ON tblItems.PartNo = tblParts.PartNo;
WHERE OrderNo = 39

c)
DELETE tblOrders.*
FROM tblOrders INNER JOIN tblCustomers ON tblOrders.CustomerID = tblCustomers.CustomerID
WHERE Town = “Wrexham”

d)
INSERT INTO tblArchive
SELECT *
FROM tblOrders INNER JOIN tblCustomers ON tblOrders.CustomerID = tblCustomers.CustomerID
WHERE Name = “Clarke”

e)
UPDATE tblParts
SET UnitCost = [UnitCost]*1.04
WHERE Description LIKE “*washer” or Description LIKE “washer*” or
Description LIKE “*washer*”


Please help :)