Step-by-step explanation:
2x = 3y
4y = 5z
x = 3y/2
z = 4y/5
ratio between x and z is 15 : 8
Answer:

2 + 6 in programming is an example of math. It is the same as in the real world. Plus signs in coding are also a form of <em>string concatenaction,</em> the term used for combining two strings into one, or a variable into a string.
To get the number ot decoder output:
2^n; where n is number of input
2^4
2 × 2 × 2 × 2 = 16 outputs