900 because 9 is greater than 5 so it rounds to my answer.
Answer:
4 plants
Step-by-step explanation:
In this problem, we are given the total area of the garden, which is:

The number of plants that can fit inside the garden is given by the equation:

where:
n is the number of plants
a is the area of each plants
In this problem, the area of each plant is

Therefore, we can re-arrange the equation to find the number of plants that can fit:

Answer:
Cluster sampling.
Step-by-step explanation:
Samples may be classified as:
Convenient: Sample drawn from a conveniently available pool.
Random: Basically, put all the options into a hat and drawn some of them.
Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.
Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.
In this question:
People divided into groups, by households.
Each member of the households(group) is surveyed, so cluster sampling.
Answer:try and solve it yourself
Step-by-step explanation: