Write the equation in standard form. show work!
1. 2(x-3)²=3x+1

2. 2.4x²-3.5x=2.2

3. 6.8x-2=4.2x²

Antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

6.3x+14 and 1.5x-6 answer in simplified form

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .