3. ALGEBRA Find x and the length of each side if AWXY is an equilateral triangle with sides WX = 6x - 12, XY = 2x + 10, and WY = 4x - 1. show work please

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Aline passes through 3,7 and 6,9 what equation represents the line