Which of the following correctly shows the number 9,045 in expanded notation?

$(9 \times 1000) + (4 \times 100) + (5 \times 1)$

$(9 \times 1000) + (4 \times 10) + (5 \times 1)$

$(9 \times 100) + (4 \times 10) + (5 \times 1)$

$(9 \times 1000) + (0 \times 100) + (4 \times 10) + (5 \times 1)$

How is the number 8,050,000 written in expanded notation?

$(8 \times 1,000,000) + (5 \times 10,000)$

$(8 \times 10,000,000) + (5 \times 100,000)$

$(8 \times 1,000,000) + (5 \times 1,000)$

$(8 \times 100,000) + (5 \times 10,000)$