30) Morrie quickly stacks sacks of flour in the warehouse. When
he is done, his pile of flour sacks looks like the diagram
below.

The shape Morrie makes with the flour sacks is most like —
A) an equilateral triangle.
B) a right triangle.
C) an obtuse triangle.
D) an acute triangle.

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?