125/21 = 150/x
cross multiply
125x = 3150
x = 3150/125
x = 25.2 lbs....rounded up = 26 lbs <==
Steps to finding the line in the diagram with the format 'ax + by = c
1. Find the slope
- To find the slope, we need any two points on the line --> (0,4) and (3,0)

2. Set up, with any one point on the line and the slope, in point-slope form

<u>Answer</u>: 
Hope that helps!
From the tables this would be 1 - 0.9773 = 0.0227 or 2.27%