How could you write this expression another way? (2b+12)÷2

The system of equations graphed below has how many solutions? y = 2x + 2

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review