Slope intercept form I need help I don’t know what to do at all someone give me the answer pls

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Abc will undergo two transformations to give aa'b'c' which pair of transformations will give a different image of aabc if the order of the transformations is reversed? a. a rotation 90' counterclockwise about the origin followed by a reflection across the y-axis b a translation 5 units down followed by a translation 4 units to the right c. a reflection across the x-axis followed by a reflection across the y-axis a rotation 180'clockwise about the ongin followed by a reflection across the y-axis reset next 2 omentum all rights reserved o atk me anything o o e

Does the point (1, sqrt 7) lie on circle shown.