The concept that can be used in order to answer this item is that of man-days. The total number of man-days required to do the job should always be constant.
This can be illustrated by the givens above.
Scenario 1:
N1 = (4 employees)(4 days) = 16 man-days
Scenario 2:
N2 = (2 employees)(8 days) = 16 man-days
The equation for determining the value of e is equal to,
k = (d)(e)
The answer is the second choice.
ANSWER
The scale factor is

EXPLANATION
The given triangle has vertices,

.
The vertices of the image triangle is,

.
The scale factor is given by

So we can use any of the corresponding sides to determine the scale factor,



Or



Or



The correct answer is C
Answer: f(30) = -1
You would substitute every X with 30
For example, x/2 - x/3 = 1 => (3x)/6 - (2x)/6 = 6/6 => 3x - 2x = 6 => x = 6;
hey mate☺️☺️ here's your answer......
4x'4 + 1