Solve this inequality and graph its solution:
3x + 20 = 14

Write the sentence as an equation. b increased by 281 is d

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

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?