The notebook page shows the conversion of binary numbers to decimal numbers. Let's break down each step as shown in the image:

(a) Conversion of 110111₂ to decimal:

1. The binary number 110111₂ is converted to decimal by expanding it using powers of 2:

   $110111_2 = (1 \times 2^5) + (1 \times 2^4) + (0 \times 2^3) + (1 \times 2^2) + (1 \times 2^1) + (1 \times 2^0)$

2. Calculating the powers of 2:

   $= 32 + 16 + 0 + 4 + 2 + 1$

3. Summing all the values:

   $= 58$

So, $110111_2 = 58_{10}$.

(b) Conversion of 11100011₂ to decimal:

1. The binary number 11100011₂ is converted to decimal by expanding it using powers of 2:

   $11100011_2 = (1 \times 2^7) + (1 \times 2^6) + (1 \times 2^5) + (0 \times 2^4) + (0 \times 2^3) + (0 \times 2^2) + (1 \times 2^1) + (1 \times 2^0)$

2. Calculating the powers of 2:

   $= 128 + 64 + 32 + 0 + 0 + 0 + 2 + 1$

3. Summing all the values:

   $= 227$

So, $11100011_2 = 227_{10}$.

Let me know if you want further details or if you have any questions!

Related Questions:

1. How do you convert a decimal number to binary?
2. What is the significance of each digit in a binary number?
3. How can binary numbers be used in computer systems?
4. What is the process for converting binary numbers to hexadecimal?
5. How can you check if a binary number is correct after conversion?

Tip: Always double-check each step when converting between number systems to ensure accuracy, especially when dealing with larger binary numbers.