Anyone ? ! i need ..how would you factories quadratic equations with coefficients

Need this asap if anyone can i would be very grateful. if you could show workings that would really

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

In a young single person's monthly budget, $150 is spent on food, $175 is spent on housing, and $175 is spend on other items. suppose you drew a circle graph to represent this information, what percent of the graph represents housing?