We can assign the value "2x" as the amount of money that Amelia which to achieve in twelve years. So, his initial money is X. We can try each percent to test if it could double the amount in 12 years. x+0.06*12years*x=1.72X x+0.12*12*x=1.44x x+0.1*12*x=2.2x x+0.166*12*x=2.992x
Well a cellphone tower has angles and it has a distance so it is possible to use trigonometry to determine its height. tools to be used are maybe a calculator, measuring tape, paper, and a pencil or pen<span />
