The problem that has the nine explain how they got that answer nine plz

Divide the sale price by the percentage amount that was paid.

Step-by-step explanation:

If a book is on sale for $6.30 with a 30% discount it means that you paid 70% of the original cost. In order to determine what the original cost was you can divide the sale price by the percentage that was paid:

$6.30 / .7 = $9.00, which is the original price of the book.

You can then double check your work - $9 x 70% = $6.30.

Try $6.30 times .30. See if that gives u ur answer.

well first you can draw a picture. so draw a line called line m and then draw a line q that is the angle bisector. so you currently have a perpendicular angle. now just draw the angle that makes q the bisector. since angle a is bisected, we can say each half is x amount of degrees. line q is the common side and each line in angle a is the same length, we can use sas equality and call the triangles maq and naq equal. since they both are congruent, we can combine then and say they are isosceles.