Elena and matthew are president and vice-president of their ninth-grade class at riverside high school. they have suggested that the school sponsor a dance to raise money for the victims of a recent hurricane. the expenses for the dance will be $250 for the dj and $100 for the refreshments. tickets will cost $5 a person. how many tickets must be sold in order to raise $1,000 after expenses? i need the right answer a.250 b.270 c.350 d.420