Help! I PUT 50 POINTS!

1. Express each of the following as a rational number.

(i) 4.12˙5˙

(ii) -2.03˙

(iii) 10.1˙23˙

(iv) 0.46˙72˙

The factorization of 8x3 -125 is (2x-5)(jx2 +kx+25)

Afactory adds 3 red drops and 2 blue drops of coloring to white paint to make each pint of purple paint. the factory will make 50 gallons of the purple paint.how many drops of red and blue coloring will the factory need in the 50 gallon batch of purple paint.

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?