Maybe try to round the percents to the nearest hundret to the answer
2.98=100%
2.32/2.98 = 0.78
0.78*100=78%
The percent of decrease was 22%.
4800in.=400ft.
I hope this will help
Calibration curves <span>absorbance versus concentration may deviate from a straight line when A<0.1 and when A>1 maybe because at these values the substances react to light differently which will cause it to not follow a linear graph. Hope this helps. Have a nice day.</span>