1. The problem asks to write the value of each underlined digit in the given numbers. 2. The value of a digit depends on its place in the number. For example, in 5094, the digit 5 is in the thousands place, so its value is $5 \times 1000 = 5000$. 3. Let's find the value of each underlined digit: a) 4907, the underlined digit is 4 in the thousands place, so value = $4 \times 1000 = 4000$. b) 37590.6, the underlined digit is 7 in the thousands place, so value = $7 \times 1000 = 7000$. c) 159783, the underlined digit is 9 in the thousands place, so value = $9 \times 1000 = 9000$. d) 8433.04, the underlined digit is 4 in the ones place, so value = $4 \times 1 = 4$. e) 69405, the underlined digit is 4 in the tens place, so value = $4 \times 10 = 40$. 4. Final answers: a) 4000 b) 7000 c) 9000 d) 4 e) 40