If his bill was 14.50 and yul wants to leave a 20% tip, what is the amount he should leave for the tip

Convert 16 yards to feet use the conversion rate 3 feet = 1 yard

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?

4+(2+x) can you me solve this problem