Which equation represents a linear function? O y=1/x
O y= 2x – 3
O y = 5x3 + 8
O y=x2 + 2x + 1

Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza