Simplify the expression using the order of operations. 3 (8-4)2 + 7.9

Solve the inequality, then identify the graph of the solution. 2x – 1 > x + 2

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?

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid