Help please I need to turn this in soon. How do I do this? I’m confused

What is the factored form of the following expressions? d^2 – 13d + 36

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

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?