3x + 4y = -4
15x + 20y = -22
One Solution
O Infinitely Many Solutions
O No Solutions

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee

At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.

(fog)(x) if f(x)=x^2- 4 and g(x)=x^2 + 2 x, f(g(x))= f(x^2+2x) (x^2+2x)^2-4 (x^2+2x)(x^2+2x)-4 (x^4+2x^3+5x+4x^2)-4 x^4+2x^3+4x^2+5x-4 what am i doing wrong