The lengths of two sides of a triangle are shown below:
side 1: 3x2 − 2x − 1
side 2: 9x + 2x2 − 3
the perimeter of the triangle is 5x3 + 4x2 − x − 3.
part a: what is the total length of the two sides, 1 and 2, of the triangle? (4 points)

Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?