12/31/21 and 12/31/22 Balance Sheet ( $ in millions) 10. What is the firm's operating cash flow for 2022? a) $412 b) $1,620 c) $3,176 d) $3,238 e) $3,819 11. What is the firm's net capital spending for 2022? a) ($1,890) b) $6,420 c) $5,910 d) $4,220 e) $4,310 12. What is the firm's change in net working capital for 2022? a) b) c) d) c) ($1,890) $3,029 $1,070 $4,310 c) $1,959 13. What is the firm's cash flow from assets for 2022? a) ($4,693) b) $450 c) $1,391 d) $7,188 e) $4,693