The r-axis on a graph represents the number of identical items purchased. The y-axis represents the total cost in dollars. What does the
slope of the graph represent?

Can someone answer this question? : )

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.

Which of the following contains a variable?