help please, and if you can show even a little bit of work that would help me understand

Mobile Video Systems sold land, investments, and issued their own common stock for $11 million, $15 million, and $21 million, respectively. Mobile Video also purchased treasury stock, equipment, and a patent for $2 million, $3 million, and $5 million, respectively. a. What amount should the company report as net cash flows from investing activities? (Negative value should be indicated by minus sign. Enter your answer in millions.) Net cash flow from investing activities milion b. What amount should the company report as net cash flows from financing activities? (Negative value should be indicated by minus sign. Enter your answer in millions.) Net cash flow from financing activities million Assume a company's sales are $1.3 million in 2020, $1.5 million in 2021, and $1,4 million in 2022. a. What is the percentage change from 2020 to 2021? Be sure to indicate whether the percentage change is an increase or a decrease. (Negative answer should be indicated by a minus sign. Round your percentage to 1 decimal place.) Percentage change from 2020 to 2021 b. What is the percentage change from 2021 to 2022? Be sure to indicate whether the percentage change is an increase or a decrease. (Negative answer should be indicated by a minus sign. Round your percentage to 1 decimal place.) Percentage change from 2021 to 2022