Amir thinks of a number,
He triples it and adds 9 to get 54.
What number did he think of?​

The number he think of is 15

Step-by-step explanation:

Let x be the number

3x + 9 = 54

x = (54-9) / 3

x = 15

The number he think of is 15

15

Step-by-step explanation:

3x + 9 = 54

x = (54-9) / 3

x = 15

the answer is c.

for continuous functions, they continue in the same pattern and you have to find that pattern kinda like slope

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.