A museum charges different rates for adults and students. Adult tickets are $14.50 and student tickets are $8.00. Ms Olivi's class went
to the museum last week and spent $232.50 on 25 tickets. How
many students and how many adults went to the museum?

please help its applying systems and i suck at word problems !!

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

Combine like terms to make a simpler expression 3z+z

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?