Math problem I need help giving brainlist ASAP

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

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?