Answer:
Decay rate of 2%
Step-by-step explanation:
Since there is no information about the units for time, merely stating that the decay rate is 2% will suffice. The decay rate for when r < 1 is found by finding 1-r, so the rate of decay is .02, or 2%.
idk
See picture for explanation.
x = -20
7 + x = -13
(subtract 7 from both sides)
D or 13 is the answer to this problem.