Answer:
x = 10
Step-by-step explanation:
61 - 21 = 40
40 / 4 = 10
x = 10
The answer is 56 I believe
Answer:

Step-by-step explanation:
Assuming 
What we have to do is replace f(x) with y, swap the locations of x and y, and then solve for y.

9514 1404 393
Answer:
see attached
Step-by-step explanation:
We take ~p∧~q∨r to mean (~p∧~q)∨r because "and" normally has precedence over "or." The (~p∧~q) term will only come into play when both p and q are false. It will only affect the outcome if r is also false. This condition is the last line of the table.