If 10x=1/0.001 find the value of x​

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.