When completed the tunnel will be 1,500. meters long what is this length in kilometers

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

If angle 2=3x +1 and angle 3=2x +4what is angle 2

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.