Is this situation proportional or non-proportional? How do you know? A gallon of milk costs $1.99. A half-gallon of milk costs $3.89

Tell me how you got the it use the figures to answer questions 1and 2. in each diagram, line k is parallel to line l, and line t intersects lines. 1. based on the diagrams, what is the value of x? 2. how would you verify your answer for x?

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Which table represents a linear function? i'll give brainliest to first answer ^'^