Question

The area of a rectangle is 1.7 square units. The length is 3.4 units and the width is z units.

Answer 1

Area of a rectangle= lxw
1.7=3.4z
1.7/3.4= 0.5
z=0.5

Answer 2

Ok, 1.7 squared is what we are looking for.
lets see,
3.4 is the length, and the width is unknown...
3.4, the best i can think of is 0.5
3.4 is twice as much as 1.7 so, the width is rather small. 0.5 units