Item 4 A helicopter is flying at an altitude of 9000 feet. It needs to reduce its altitude by 4% to change direction. After it changes direction, it increases its altitude by 800 feet.

What is the final altitude of the helicopter?

Enter your answer in the box.

Which of the following questions describes the equation g + (-4) = -5? a)what number, when added to negative four, is equal to negative five? b)what number, when added to negative five, is equal to negative four? c)what number, when subtracted from negative four, is equal to negative five? d)what number, when subtracted from negative five, is equal to negative four?