Answer:
So in two weighings, we can find a single light coin from a set of 3 × 3 = 9. By extension, it would take only three weighings to find the odd light coin among 27 coins, and four weighings to find it from 81 coins.
Step-by-step explanation:
Equivalent expression
y/3 = 1/3 * y
the slope is : -5/2
y-intercept is: 5
Answer:12
15-3=12
exist in areas like physical science, electronics, business, and social sciences. hope this helps
