Select the correct answer. simplify the expression below. 4x(3x − 7) − 19x2 a. -7x2 − 7 b. -35x2 c. -7x2 − 28x d. -31x2 − 28x

And explain how you got it so i can understand future problems : 3

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) .

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)