diff --git a/4/img/avocado.png b/4/img/avocado.png
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diff --git a/4/img/basket.png b/4/img/basket.png
new file mode 100644
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diff --git a/4/img/carrot.jpg b/4/img/carrot.jpg
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diff --git a/4/img/carrot.png b/4/img/carrot.png
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diff --git a/4/lesson_4.js b/4/lesson_4.js
new file mode 100644
index 0000000..3819bd3
--- /dev/null
+++ b/4/lesson_4.js
@@ -0,0 +1,48 @@
+// Task 1
+var num_1 = prompt("please type number from 0 to 999: ")
+if (num_1 > 999){
+ alert("your number " + num_1 + " bigger than 999");
+}
+else{
+ var units = num_1 %10
+ num_1 = Math.floor(num_1 / 10);
+ if (num_1 >= 1){
+ var dozens = num_1 %10
+ num_1 = Math.floor(num_1 / 10);
+ if(num_1 >= 1){
+ var hundreds = num_1 %10
+ alert("hundreds: " + hundreds + "dozens: " + dozens + "units: " + units)
+ }
+ else{
+ alert("dozens: " + dozens + "units: " + units)
+ }
+ }
+ else{
+ alert("units: " + units)
+ }
+}
+
+//Task 2
+let cart = {
+ "soap": 25 ,
+ "paint": 35,
+ "cloth": 200
+};
+
+
+
+
+function countBasketPrice(user_cart){
+ var price = 0;
+ for(var i in user_cart){
+ price = price + user_cart[i];
+ }
+ return(price);
+}
+
+alert(countBasketPrice(cart))
+
+
+
+
+
diff --git a/4/styles.css b/4/styles.css
new file mode 100644
index 0000000..a90479f
--- /dev/null
+++ b/4/styles.css
@@ -0,0 +1,22 @@
+.cart {
+ background: url(img/basket.png);
+ margin: 300px auto;
+ height: 157px;
+ width: 150px;
+
+}
+
+.carrot{
+ background: url(img/carrot.jpg);
+ margin: 200px auto;
+ height: 250px;
+ width: 300px;
+}
+
+.avocado{
+ background: url(img/avocado.png);
+ margin-top: 100px;
+ margin-left: 240px;
+ height: 250px;
+ width: 300px;
+}
\ No newline at end of file
diff --git a/4/tests.html b/4/tests.html
new file mode 100644
index 0000000..b824d05
--- /dev/null
+++ b/4/tests.html
@@ -0,0 +1,15 @@
+
+
+
+
+ Document
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file