For the equation, complete the solution. 7x + y = −18

Lilianna uses 3/4 calories per minute just by sitting. she uses 1 more calorie per minute by walking. lilianna uses a total of 12 1/4 calories walking to the park. lilianna uses the equation, d(.75+1)=12.25 to represent the situation. what does the variable d represent in the equation?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

15 points what is the end behavior of this graph? & what is the asymptote of this graph?