The length of one side of a square is increased by 1 cm and that of the other side is reduced by 3 cm. The rectangle now formed has a perimeter of 64 cm. What is the length of the side of the original square?

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Which of the following transformations will always produce a congruent figure?

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?