Starts at 1,000feet
Each second is getting 20 feet closer to the surface since is ascending ( going higher)
1,000/20= 100/2=50 second it takes to reach the surface
Answer:
i think its just the last one
Step-by-step explanation:
because the first two are all real numbers and the thrid equals one
D has the commutative property because it just flip flopped the numbers.
It's indepentent. In fact, the tar pit's temperature DEPENDS (dependent variable) by the air's temperature (independent variable).
Delete this answer please.