Two nascar cars are racing around a 2 mile track. one car can complete a lap in 48 seconds, and the other car can complete one lap in 40 seconds. if they start side by side, after how much time will they be side by side again? a) 4 min. b) 8 min. c) 10 min. d) 12 min.

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) .

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?