diff --git a/index.js b/index.js
index 47b7e31..f0dfcfb 100644
--- a/index.js
+++ b/index.js
@@ -12,7 +12,17 @@ const app = express();
 const port = process.env.PORT || 3000; // Use Codespaces port
 
 app.get("/", (req, res) => {
-  res.json({ message: "Hello from Express!" });
+  res.send('Specify /add?x=val1&y=val2, /subtract?x=val1&y=val2, etc.')
+});
+
+app.get('/add', (req, res) => {
+  let sum = parseFloat(req.query.x) + parseFloat(req.query.y);
+  res.json({ sum: sum, x: req.query.x, y: req.query.y  })
+});
+
+app.get('/pow', (req, res) => {
+  let sum = req.query.x ** req.query.y;
+  res.json({ pow: sum, x: req.query.x, y: req.query.y  })
 });
 
 app.listen(port, () => {