D’nice spends from 10-20 at the dollar store each week. She spends about 20% percent f the amount on vegetables and fruit. Which of the following is reasonable estimate of the amount of money D’nice will spend on vegetables and fruit at the grocery store during the next 3 weeks

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?