Kree works for a constant hourly wage of w dollars. Which choice shows the correct relationship between e, Kree’s total earnings in a week and h the number of hours he worked during the week? A. e=h/w

B. h=w/e

C. e=wh

D. h=ew

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?