Solve equation using substitution, write the solution as an ordered pair.

x=3y - 4

2x + 6y =,4

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm

Will mark brainliest! ( explain the answer too, it can be one sentence)