Answer:
6.67
Step-by-step explanation:
For this question once again use the same method I explained for the other questions. So I'm not going to go in-depth on explaining this one, since it is the same as others.
Step 1:
40/30=1.333333333333333
Step 2:
5 x 1.333333333333333 = 6.666666666666667
Step 3:
Simplify.
6.67 should be the length of BM
Hope this helps! :)
