The length of the x in the diagram is 12.
We can set up the following equation using the similar triangles that are created when you have an altitude in a right triangle.
If you subtract 16 from 25, you get 9, which is the length of the segment next to the 16.
x^2 = 16(9)
x^2 = 144
x = 12
Three pounds is less than 50 ounces. 3 pounds =48 ounces
EFGH is twice the size of ABCD
(2t-3)²=4t²+9-(2t.(-3))=4t²+9-6t
