In 5.074 the digit 5 stands for

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?

An object in geometry with no width, length or height is a(n):

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?