What is the difference of the two expressions shown below (3/4X+2)-(1/4x+5). Explain why A. 1/2x + 7

B. x + 7

C. 1/4X - 3

D.1/2x - 3

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

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

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