A recreational club charges a one time $20 membership fee and $3 for use of the pool i just need an answer and step by step work of it someone help me please.

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?

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?