The first equation in a system is 5x+2y=-4. Which equation gives a system with no solution?

What is the shape of the height and weight distribution

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Ineed to know the answer to this algebra question.