Answer:
Below.
Step-by-step explanation:
I'll do number 20, 21, 22 for you.
20. It is ±1, ±2, ±4, ±8.
21. Reflected over the x-axis and down 4.
22. Common ratio = 25/5 = 5.
23. Imaginary roots occur in pairs so there is also a root -5i.
The answer is c.
19. Option (a).
This is a translation of 4 to the left ( due to the (x + 4).
Answer:
The commutative property of multiplication states that the numbers of the operation can change their order, and this action will not alter the outcome.
Example 1:

Changing the order of the numbers in the operation:

Example 2:

Changing the order of the numbers in the operation:

Answer:

Step-by-step explanation:
Given
Perpendicular to 
Pass through 
Required
Determine the line equation
First, we need to determine the slope of 
An equation is of the form:

Where

In this case:

Next, we determine the slope of the second line.
Since both lines are perpendicular, the second line has a slope of:



Since this line passes through (-2,2); The equation is calculated as thus:

Where

This gives:



Add 2 to both sides


I think it means meter per second.