Solve the system 3x - y = 2 and y = x - 1. A. (-2, 2)
B. (1/2, -1/2)
C. (2, -2)
D. (-1/2, 1/2)

If lmn=xyz, which congruences are true by cpctc? check all that apply

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

How many solutions does the nonlinear system of equations graphed bellow have?