Express the following quantities as ordinary decimal numbers: (use solution) :: The estimated world population for the year 2000 was 6.130 x 10⁹.

Which statement about the relative areas of ? abc and ? xyz is true? the area of ? abc > the area of ? xyz the area of ? abc < the area of ? xyz the area of ? abc = the area of ? xyz more information is needed to compare.

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?