Determine the number of solutions for the system of equations

Y=16x-19
Y=3x^2+4x-7

Chose the graph below that represents the following system of inequality’s

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?

Give another definition of variability and explain how it can be calculated.