Answer:
j
Step-by-step explanation:
Answer: 
Step-by-step explanation:
use the equation 
we know the slope, y, and x, so plug in


Answer:
Step-by-step explanation:
<u>In 4 seconds the rock will be at:</u>
- 2*4 = 8 in from the surface
<u>Add 5 feet to this to get the required distance:</u>
- 5 ft + 8 in = 5*12 in + 8 in = 68 in