answer
The 3 lb bag of cat food would last for 4 weeks.
Step-by-step explanation:
Least to greatest: 0.7 0.9 0.73 0.81
When the squared terms are of different signs, the equation generally describes a hyperbola. This one has its vertices at x=±30, so the parameters of interest are
domain: (-∞, -30] ∪ [30, ∞)
range: (-∞, ∞)