0.8 - 4x = -0.4y 6x + 4.0y = 4.2

Which of the following shows the system with like terms aligned?
a.) -4x - 0.4y = -0.8 6x + 0.4y = 4.2
b.) -4x + 0.4y = 0.8 6x + 0.4y = 4.2
c.) -4x + 0.4y = -0.8 6x + 0.4y = 4.2
d.) -4x + 0.4y = -0.8 6x - 0.4y = 4.2

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

What is the relationship between all triangles that can be drawn given the same three angles

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project