The bar graph shows the numbers and colors of cars in a parking lot. The total number of silver and black cars equal the total number of red, white, and blue cars. How many black cars in the parking lot? A)9 , B) 10, C)15, D)30

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?