Answer:Elimination will be easier
Step-by-step explanation:
you eliminate y by adding
The answer you are looking for is 5.8 times greater
You probably made a typing error in writing s = -3 and wrote s - = 3 instead.
The given expression is:

Substituting the given value of s in the previous equation, we get:

Thus the value of given expression becomes -46 for s = -3
Answer:
Systematic sampling.
Step-by-step explanation:
The systematic sampling is a type of random sampling in which a unit is selected from k units and after this every kth unit is selected until population is serially numbered from 1 to N arranged in a systematic way.
The statement shows that every 18th truck is selected until a sample of 60 trucks is selected. It shows that a systematic random sample is obtained with k=18 and thus, systematic sampling is used.
The first picture would be choice answer c because the number of x's represent how many birds wings are this size. The number on the tic mark represents the size of the wing span. So you would take the number of x's times the tic mark represented under it. There are 3 birds with 3 1/8 wingspan so it wold be 3 1/8 *3. Hoped this helps for the first one!