Write each equation in standard form. Identify A, B,and C. 2x=4y-1

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5