Answer: Reflection across the y axis.
Clockwise rotation
Step-by-step explanation:
Answer: $95
Step-by-step explanation:
Te new price will be 90 + 5x, if the price increases "x" times
The number of wind chimes sold per month will become 140 - 7x

Therefore, if the price becomes (90 + 5(1)) = $95 per wind chime, then the revenue will be maximum
Answer:
4
Step-by-step explanation:
Ok this is a negative number.
All negative numbers have argument

Obviously, the module of this number is

The general trigonometric form of a complex number is:

We deduce the trigonometric for of -4:
Answer: Cluster sampling technique
Step-by-step explanation:
Cluster sampling is any sampling procedure that the statistics can be divided into a finite
number of distinct and identifiable units, the most of groups or clusters in the statistics will correctly represent the total students that are interviewed in the class.