Answer:x=3
Step-by-step explanation:
-5x=-15
divide by -5
x=3
Answer:
Step-by-step explanation:

Plot the points(0 ,-4) , (5 , -5) and (-5 , -3 ) in the graph and join the points.
We need the exponents law

So if
a=3
b=1/2
then

where x represent every half a year.