Answer:
10.717
Step-by-step explanation:
15.31×0.7 = 10.717
Walter is right cause 30x5 equals 150
Consider
.
Given:

To find:
The length of BC.
Solution:
We have,

We know that the corresponding parts of congruent triangles are congruent (CPCTC).
(CPCTC)

The length of BC is 5 m. Therefore, the correct option is A.