Guys please help me... On a farm there are chickens, ducks and pigs.
The ratio of the number of chickens to the number of ducks is 7:2
The ratio of the number of ducks to the number of pigs is 5:9
There are 36 pigs on the farm.
Work out the number of chickens on the farm.​

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.

What happens to isotopes that are unstable?

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer