Answer
A.CD
Cause theCD is the mid point of triangle ADB which divides triangle in two half if you look carefully you can understand the diagram ☺️☺️
Answer:

Step-by-step explanation:
- let
be that number

- multiply both sides by



Answer:
12
Step-by-step explanation:
84-54=30
30/2.5=12
Answer:
45
Step-by-step explanation:
Because if you replace the r with 3, it would be 15(3).
15(3) is the same as 15 × 3.
15 × 3 = 45
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Answer:
130*
Step-by-step explanation: