[02.03]what determines the mass number of an element?
o the number of protons
the total number of neutrons and protons
the number of protons minus the number of electrons
the total number of protons, electrons, and neutrons

The image of abc is a'b'c. what transformations would result in this image? abc is reflected over the line x = 1, then is rotated -90° around the origin. abc is reflected over the line y = x - 1, then t: (x, y) → (x - 1, y - 1). abc is rotated 90° around the origin, then is reflected over the y-axis. abc is rotated -90° around the origin, then is reflected over the line y = -1.