Answer:
5=y
Step-by-step explanation:
hope this helps!!!!
If you're simplifying, it would be 16z+10 squared.
Remember,

, where

is circumference and tex]d[/tex] is the diameter. They are related by a constant

(pi).
We can solve the above equation for d and then substitute our known values.

Answer:
1. x + y = 25
2. x - y = 7
3. x = 16, y = 9
Step-by-step explanation:
(x + y = 25) + (x - y = 7)
2x (the y cancels) = 32
32/2 = 16, x = 16
substitute x in either equation
16 + y = 25
y = 9