In a group of 60 triangular and square tiles, 25% are red and 75% are blue. the ratio of triangles to squares is 1: 2. seventy percent of the squares are blue. find the number of each kind of tile (red or blue squares or triangles

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?