Which of the following (as defined by the International Astronomical Union) is a celestial body orbiting a star or stellar remnant that is massive enough to be
rounded by its own gravity, not massive enough to cause thermonuclear fusion,
and has cleared its neighboring region of planetesimals?

a. comets
b. stars
c. dwarf planets
d. planets
e. asteroids

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)