diff --git a/submissions/toyin5/week-2/task_1.rs b/submissions/toyin5/week-2/task_1.rs
new file mode 100644
index 0000000..273bb7a
--- /dev/null
+++ b/submissions/toyin5/week-2/task_1.rs
@@ -0,0 +1,3 @@
+fn btc_value_in_usd(btc: f64, rate: f64) -> f64{
+    return btc * rate;
+}
\ No newline at end of file
diff --git a/submissions/toyin5/week-2/task_2.rs b/submissions/toyin5/week-2/task_2.rs
new file mode 100644
index 0000000..8a03a2c
--- /dev/null
+++ b/submissions/toyin5/week-2/task_2.rs
@@ -0,0 +1,27 @@
+fn mine_blocks(limit: u8) {
+    for height in 1..=limit {
+        println!("Mining block #{}", height);
+        let difficulty: u64 = (height as u64 / 2).saturating_add(2);
+        println!("Difficulty set to {}", difficulty);
+
+        
+        let mut attempts: u64 = 1;
+        while attempts % difficulty != 0 {
+            attempts += 1;
+        }
+        println!("Block #{} mined after {} attempts", height, attempts);
+
+        if is_a_product_of_5(height as u32) {
+            println!("Block #{}. Checkpoint reached", height);
+        }
+    }
+}
+
+fn main() {
+    let block_limit = 10;
+    mine_blocks(block_limit);
+}
+
+fn is_a_product_of_5(n: u32) -> bool {
+    n % 5 == 0
+}
\ No newline at end of file
diff --git a/submissions/toyin5/week-2/task_3.rs b/submissions/toyin5/week-2/task_3.rs
new file mode 100644
index 0000000..ef4bf6d
--- /dev/null
+++ b/submissions/toyin5/week-2/task_3.rs
@@ -0,0 +1,28 @@
+enum Network {
+    Mainnet,
+    Testnet,
+    Regtest,
+}
+
+fn get_rpc_url(network: &Network) -> &str {
+    match network {
+        Network::Mainnet => "https://localhost:8332",
+        Network::Testnet => "https://localhost:18332",
+        Network::Regtest => "https://localhost:18443",
+    }
+}
+
+fn main() {
+    let networks = [Network::Mainnet, Network::Testnet, Network::Regtest];
+    
+    for network in networks.iter() {
+        match network {
+            Network::Mainnet => println!("Connected to Bitcoin Mainnet - Main Environment"),
+            Network::Testnet => println!("Connected to Bitcoin Testnet - Testing Environment"),
+            Network::Regtest => println!("Connected to Bitcoin Regtest - Local Development"),
+        }
+        println!("RPC URL: {}", get_rpc_url(network));
+        println!("-------------------");
+    }
+}
+