Determine whether each equation represents a direct variation. if it does, find the constant of variation 4x + 6y =3

Question 10jur's car can travel 340 miles on 12 gallons. jack's car can travel 390 miles on16 gallons. which person has the best mileage (miles per gallon) and what istheir mileage?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

How many grams the dog will eat in 3 days?