I REALLY NEED HELP PLEASE LOOK AT THE ATTACHMENT

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?