Sometimes life is to hard to be alone but yet i do it everyday yet every day passes and my mood becomes unstable to be happy

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

If 7x=9y, y/z = 7/5 , then x/z = (a) 2/7 (b) 7/9 (c) 9/5 (d) 9/7 (e) 5/9

Determine if the outside temperature is a function of the time of day or if the time of day is a function of temperature and explain why or why not.