20 circuits is 25% of what number of circuits?

In two or more complete sentences, formulate how to use technology to calculate the appropriate regression model for the given data. you are not required to find the model, just choose the appropriate regression and explain how to use the technology. (-5,,2.,0.8), (0,-0.5), (2,-1.3), (3,-0.8), (5,2)

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Common binomial factor of 6x(3x+7)+5(3x+7)