Which of the following is a linear function? a. y = 3x2

b. y = 1 over 3x

c. y = x3 + 5

d. 2 over 3x = y − 1

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.