How can the bar symbol be used to show the quotient of 10 divided by 12 if the division is carried on forever

Since, in its decimal expansion, you'd have

We use the bar symbol over the digits that repeat indefinitely, so, in this case, we'll write a single "3" with an overbar:

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.

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9