A farmer, worried about his fruit trees suffering frost damage, calls the weather service for temperature information. He is told that temperatures will be decreasing approximately $4 ^ { \circ }$ every hour for the next 4 hours. What signed number represents the total change in temperature expected over the next 4 hours? ________$ ^ { \circ }$

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The Answer of A farmer, worried about his fruit trees suffering frost damage, calls the weather service for temperature information. He is told that temperatures will be decreasing approximately $4 ^ { \circ }$ every hour for the next 4 hours. What signed number represents the total change in temperature expected over the next 4 hours? ________$ ^ { \circ }$

A Farmer, Worried About His Fruit Trees Suffering Frost Damage 4∘4 ^ { \circ }4∘

A Farmer, Worried About His Fruit Trees Suffering Frost Damage $4 ^ { \circ }$