Change in y over the change in x
Answer:
Option B. 
Step-by-step explanation:
we know that
The area of a triangle is equal to

we have


Convert mixed numbers to an improper fractions


substitute the values

Answer:
1/4
Step-by-step explanation:
3/12 = 1/4
(We got 12 by adding all the numbers together.)
Answer:
28.27 inches
Step-by-step explanation:
circumference of a circle = πd
9π = 28.27