Answer:

Step-by-step explanation:
Using the rule of exponents
⇔
, then
=
= 
Answer:
Distance = rate x time or d = rt...that means time t = d/r...and we have
t = 21 km / .5 km/hr = 42 hr
Step-by-step explanation:
The points that are graphed would be (0,-1) and (1/2, 2).
Reasoning: Slope is 2, and the y-intercept is (0,-1)
Answer:
50%
Step-by-step explanation:
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