What is the slope of the equation 4x + 5y = 10?
A) -4/5
B) 4/5
C) -5/4
D) 5/4
please help lol

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.