Antoine wants to convert millimeters into kilometers. Which operation should he choose? A:He should multiply millimeters by 1,000. B:He should divide millimeters by 1,000.
C:He should multiply millimeters by 1,000,000.
D:He should divide millimeters by 1,000,000.

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?