Which sampling method divides the population up into sections, randomly selects some of those sections, then chooses all the members from the selected sections to study?

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

Write the fraction or mixed number and the decimal shown by the model

4+(2+x) can you me solve this problem