Based on the graph, what is the excess demand for apartments in this economy after the application of rent control?

a).8b).15c).19d).23e).34

ANSWER: C).19

EXPLANATION: The application of Rent Control shows that the rent of the apartments has been sealed at $420. So, according to the graph, the demand for apartments are 34 whereas the supply or availability of apartments are only 15. So we can conclude that the Excess Demand is equal to Total Demand - Total Supply which is 34 - 15 = 19.

if triangle abc is congruent to triangle def, their interior angles are congruent, because congruent parts of congruent triangles are congruent (cpctc).

that means ∠d is congruent to ∠a; ∠d is equal to 8x - 2.

interior angles of all triangles add to equal 180 degrees, so you can set the sum of these interior angle values equal to 180 and solve for x.

180 = (8x - 2) + 22 + 72

180 = 8x - 2 + 22 + 72

180 = 8x + 92

88 = 8x

11 = x

x = 11