How many proportional relationships are shown in the coordinate plane below?

Eis the midpoint of line segment ac and bd also line segment ed is congruent to ec prove that line segment ae is congruent to line segment be

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Sawsan recorded the favorite sport of students at her school. she surveyed 200 students. how many students chose tennis?