Answer this plz asap I am in middle of the test

Aline passes through 3,7 and 6,9 what equation represents the line

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick

Can someone me find the original price? the discount is 5% and the sale price is $68.40