Add -9 and -7 using 2nd compliment

answer; wireshark;

answer

true

explanation

stem(science, technology, engineering and math)   skills in every career. for example, to operate a business, you require stem skills to provide estimates to customers, prepare budgets and promote business online. the stem careers that are currently in high demand are application software developers, market research analysts, civil engineers, industrial engineers, electrical engineers, and family and general practitioners.