Refer to the porch stairs shown. Line m is parallel to line n and mL7 is 35º. Find the measure of L1. Justify your answer.

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount