Help me with this plz

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?

What is the length of side s of the square shown below?

Find the coordinates for the center for this circle (x+3)^2+(y-5)^2=25