Answer:

Solution Steps:
This is an arithmetic sequence since there is a common difference between each term. In this case, adding 5 to the previous term in the sequence gives the next term. In other words,
.
Arithmetic Sequence: 
Find the next term using the Arithmetic Sequence.
Arithmetic Sequence: 

Answer:
A pound is bigger.
Step-by-step explanation:
16 ounces is equal to 1 pound.
Answer: C
Step-by-step explanation: x represents the number of classes, not the cost of classes.