Algebra help
posted by Brianna .
Find each percent of change. Describe the percent of change as an increase or decrease. Round to the nearest tenth if necessary.
15lbs to 18lbs
$38 to $65
125lbs to 143lbs

These are all increases.
18  15 = 3
3/15 = 0.2 = 20%
Try the others, and I'll check your answers. 
Thank you! Are these right?
$38 to $65
6538=27
27/38=0.710 = 70%
125lb to 143lb
143125=18
18/125=0.144= 14% 
You're close.
27/38 = 0.7105 = 71.1% rounded to the nearest tenth
18/125 = 0.144 = 14.4% 
Ok. Now I have a question about finding the minimum and maximum possible areas for rectangles with the following areas. This is what I got can you check please?
7 mi x 8 mi
Minimum 7.5x 6.5= 48.75 mi
Maximum 8.5x 7.5= 63.75 mi
12 km x 5 km
Minimum 11.5x4.5= 51.75 km
Maximum 12.5x5.5= 68.75 km