Nancy bought 360 tropical fish for a museum display. she bought 8 times as many goldfish as angelfish. how many of each type of fish did she buy? which is a system of equations to model the problem if x represents the number of angelfish nancy bought and y represents the number of goldfish she bought? a){x – y = 360 {y = 8x b){x + y = 360 {y = 8x c){x + y = 8 {y = 360x d){x + 8y = 360 {y = 8x