Parallelogram PQRS is similar to Parallelogram LMNO. What side on LMNO corresponds with side QR? What side on PQRS corresponds with LO? If angle S is 42 degrees, what is the measure of angle O? ( What goes in the space of the questions)

Side corresponds with side QR.

Side corresponds with side LO.

The measure of angle O is degrees.

Given that abcd is a rhombus, what is the value of x?

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?

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?