The speed, s, of an ant (in centimeters per second) is related to the temperature, t (in degrees Celsius), by the formula s = 0.167t - 0.67

If the temperature is 40 degrees Celsius, how fast is the ant moving?

List the elements of the set in roster notation. (enter empty or ∅ for the empty set.) {x | x is a letter in the word hippopotamus}

Which system of linear inequalities is represented by the graph? !

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?