The table shows the number of days required to perform a given number of chores. The number of days varies directly with the number of chores. What is the constant of variation?

Josephine has a great garden with and area of 2x2 + x - 6 square feet

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.

What is the y-intercept of the line with the equation 3x + 4y = 12?