You just need to know that all sides need to have the same measurement because it is a equilateral triangle.
Answer:

Step-by-step explanation:

Convert the mixed number into improper fraction


To multiply one fraction by another, multiply the numerators for the numerator, and multiply the denominator for its denominator and reduce the fraction obtained after multiplication into lowest term



Convert the improper fraction into mixed number

Hope I helped!
Best regards! :D
Answer:
B
Step-by-step explanation:
too easy
Here is what the graph looks like
Answer:
42
Step-by-step explanation: