Brainless math

[PussyCat]

The mathematical equivalent of [reality shows] featuring [machos] and chicks doing silly things—in school, students will be doing thousands of [sterile] drills-and-kills until math becomes optional.

[Guest]

Given that ƒ(x) = x² + 4x, evaluate ƒ(-2)

[Guest]

The temperature in Nico’s town was Negative 2.8 degrees Fahrenheit at noon. The temperature increased at a steady rate of mc011-2.jpg per hour until 6:00 p.m. Then, the temperature decreased by a total of 3.7 degrees Fahrenheit by midnight. What was the temperature at midnight?
Negative 6.9 degrees Fahrenheit
Negative 5.2 degrees Fahrenheit
0.8 degrees Fahrenheit
1.3 degrees Fahrenheit