Answer:
A = 2, the number is 3221
Step-by-step explanation:
In order for the number to be divisible by 9, the sum of it's digit has to be divisible by 9.
In our case,
where k is an integer. the easiest way happens when k=1

Higher values of k will likely most work (with k=2 you get A to be a non-integer, which can't work since it's the digit of a number, and with higher values of K you're not getting a number in base 10.
How to solve this: (in case you need it)
4n-18=52
4n-18+18=52+18
4n=70
4n/4=70/4
n=35/2
The answer is 0, as there is no slope going up or down.
I think the answer is 61 dont quote me on it im awful at math
Answer:
A square is also a rhombusand a rectangle. TheRectang is not a square and yea so, in the end a square is both rhombus and rectangle
Step-by-step explanation: