The answer to this questions is letter B
Answer:I think the answer is multiplication property of equality
Step-by-step explanation:
it is being multiplied to get the answer so that should be the answer
Answer:139 cm squared
Step-by-step explanation:
First separate it:
10x3
7x7
4x15
These are the 3 rectangles that make up this shape
Then multiply
10x3=30
7x7=49
4x15=60
Then add your answers
30+49+60=139cm squared
√50 lies between 7 and 8.
