The doctor tell Sasha that she needs to exercise enough to burn at least 5500 calories each day. She prefers kickboxing or running. Well kickboxing she burns 30 cal per minute, and while running she burns 21 cal per minute. But XB the number of minutes she spends kickboxing and let YP the number of minutes she spends running. Write an any quality that models the situation.

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

What is the solution set of the quadratic inequality x^2-5< or equal to 0

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?