Answer:
The answer is 4536.
Step-by-step explanation:
Each number is to consist of four different digits(no repetition) from 0 to 9, except that the first digit cannot be 0.
Total numerals from 0 to 9 = 10
For 1st place you have 9 options for 1st digit (0 is not selected here).
For the 2nd place you again have 9 numbers (0 is available but 1 digit less from 10 as it is already selected in first place) so, you get 9c1 ways = 9
For the 3rd place you have 8c1 ways = 8
For the 4th place you have 7c1 ways = 7
Total number of identification numbers are : 
Therefore, there are 4536 different identification numbers.

how much land are they all in total? well, is just their product.
let's firstly convert the mixed fractions to "improper" and then multiply.
Answer:
25%
Step-by-step explanation:
If we consider the original price of the piece of suit is x.
Given that, on Monday during a one day sale, the price of the suit was decreased by 20%.
Therefore, the new price of the suit on Monday is
.
Now, the price of the suit on Tuesday was changed back to the original price i.e. x.
Therefore, the price is increase by (x - 0.8x) = 0.2x from the price of 0.8x.
So, the percentage change in price of the suit on Tuesday is
%. (Answer)
Answer:
g=-1
Step-by-step explanation:
3(g+4)=9
Divide both sides by 3.
g+4= 9/3
Divide 9 by 3 to get 3.
g+4=3
Subtract 4 from both sides.
g=3−4
Subtract 4 from 3 to get −1.
g=−1
A, C, E
B false because triangle is confirmed larger if the circle is fit inside of it.
D false because circle on the inside.
A true because triangle on outside
C true because it is a property of inscribed/circumscribed circles/triangles
E true because of inverse relationship