15+5=2y-5+5
=20 = 2y
20/2 = 2y/2
10 = y
Answer:
the probability is 1
Step-by-step explanation:
512 is equivalent
2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2=2^9
2^9=512
-0.85714285714
Rounded answer:
-0.86