Read the excerpt from Infinite Jest
There is a new silence. The yellow Dean's eyebrows go circumflex. The two other Deans look to the Director of
Composition. The tennis coach has moved to stand at the broad window, feeling at the back of his crewcut. Uncle
Charles strokes the forearm above his watch. Sharp curved palm-shadows move slightly over the pine table's shine,
the one head's shadow a black moon.
What can be inferred from this excerpt?

right angles are formed by perpendicular lines. if the lines would extend, to make two intersecting lines, they would form four right angles.

[content deleted] - user123802726recklesschicken

the answer is somber

recent brain research has shown some surprising benefits as a result of formal musical training. learning to play a musical instrument appears to develop parts of the brain that can even influence academic results. the studies indicate that the earlier a child begins training, the more benefits there are. one such study showed that children who began musical studies before the age of seven had a more developed brain in the region where language production and auditory processing take place. scientists believe there is mounting evidence to show that early musical training can improve brain function.

explanation: