Nicole wants to rent a boat and spend less than $37. the boat costs $8 per hour, and nicole has a discount coupon for $3 off. what are the possible numbers of hours nicole could rent a boat? use t for the number of hours write your answer as an inequality solved for t

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?