A wire is attached to a cell phone tower at Sunshine Village. The wire is 15.6m in length, and the angle of elevation is 54°. What is the distance between the wire and the base of the cell phone tower, along the ground, correct to the nearest tenth of a unit?

Draw a diagram. It should be clear that

x/15.6 = cos54°

If this is challenging, you need to review your basic trig functions.