If y = 4x, x = 2z, and z = 3a, what is the value of y - x in terms of a? A) -20a
B) -18a
C) 6a
D) 18a
E) 20a
With steps please

Construct the graph that models the given situation

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?

Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de