I'd say 1, 3 , and 4 (and triangle 2 looks similar to those 3)
Answer:
1. its B
2. you use pemdas
3. you use the second step of pemdas
Step-by-step explanation:
1. because all of the parts are equal and there are only four equal parts.
2. Pemdas=Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
3. Pemdas=Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
Answer:
-9
Step-by-step explanation:
I wasn't taught this specifically, but I would think that it would mean two ratios are involved with the same problem, just like it says.