-2c+22=10 plz help calvarez0324

plz help asap
what is the answer
and what does c stand for??!?

Which shows the pre image of triangle xyz

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)