23. The answer is B) x-6.
23.) The answer is D) x + 3
•20x200
•4x1000
•8x500
•10x400
•16x250
•2x2000
any of those
<span>Hello :)
6(x+3)=(x+3)+(x+3)+(x+3)+(x+3)+(x+3)+(x+3)
Six times some number plus 3 is 42.</span>
So.. in this case, the starting amount is the 500mg sample... and the rate of decay, negative rate, is 1%, and at the time, the elapsed days is 0, to t = 0, P = 400