I need to find the answer for this problem, Please Help!

The system of equations graphed below has how many solutions?

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

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