Answer:
B=-1
Step-by-step explanation:
Standard form is Ax+By=C.
In this case, Ax is x, By is 1/5y, and C is +2.
To isolate the 2 (the C), subtract x from both sides of the equation:
x+2=1/5y
-x -x
2=-x+1/5y.
Now, the value of B, the x value, is -1.

so, is decaying at a rate of 0.5 or 50%, notice, since is a decay rate, is negative.
(3,1)
Hope this helps :))
I hope this helps but it is either d or a because parentheses and another term for multiplication and so is a dot