Step-by-step explanation:

Answer:
-19
Step-by-step explanation:
5-1=4
x/4=4
16/4=4
-3-16=-19
Answer is A
Step-by-step explanation:
hope that helps
1/2 of the pizza is eaten in an hour. To get from 1/2 an hour to 1 hour, you multpily by 2. Multiply 1/4 by 2 to get 1/2.
I believe the answer is C. It is the only one that makes sense