Functions of Two Variables allot all Display the values of the functions in Exercises 37-48 in two ways: (a) by sketching the surface z = f(x, y) and (b) by drawing an assort- ment of level curves in the function's domain. Label each level curve with its function value. 37. f(x, y) = y² og 39. f(x, y) = x² + y² 41. f(x, y) = x² - y 43. f(x, y) = 4x² + y² 45. f(x, y) = 1 lyl 47. f(x, y) = √x² + y² + 4 d38. f(x, y) = √x d 40. f(x, y) = √x² + y² 42. f(x, y) = 4 - x² - y² 44. f(x, y) = 6 - 2x - 3y f(x, y) = 1 − |x| − │y| 48. f(x, y) = √x² + y² − 4 shown 46.

could you please write the solution again more clealry please

In 2011, a record-breaking sandwich was made in Lebanon. The length of the sandwich was 735 meters. One meter is about 3.3 feet. Which is the approximate length of the sandwich in feet?