We have the expression:

And want to evaluate in y=5, this means we have to replace y in the expression for 5 and calculate the value of the expression, so:

The expression is 30 when y=5.
The answer to this question is B because the heat is transferred onto the spoon from the soup
25-4x=16-4x
25-4x+4x=16-4x+4x
25=16
No solution
Contradiction
Answer:
It is 18
Step-by-step explanation:
A^2+31^2=36^2
After that you simplify then solve and you'll get 18