C. 17.7 cm this is correct I just had this question on my work and this is the answer
Answer:

Step-by-step explanation:

Answer:
$30
Step-by-step explanation:
To find out how much Billy will pay, just multiply 12 and 2.50
12 x 2.50 = $30
Answer:
The median of this set is 45.
Step-by-step explanation:
Answer:
about 10 my boy
Step-by-step explanation:
big big big