Two points give you a line. A third point (often called a check-point) is used to confirm the accuracy of your first two points. If all three line up, you have confirmed you have the correct line.
This sequence starts with an initial set; let’s call it s1. This set contains 20 cans, and every set following would have two less cans than the last set. So,
s1=20
s2=s1-2=18
s3=s2-2=16
•
•
•
s9=s8-2=4
How many cans in the display represents the value of each set added together, so we can denote this as
s1+s2+s3+...+s9
and replacing with values:
20+18+16+...+4 = 108
The number of cans in the display equals 108.
(The set notation seems weird, but by practicing this application now, the Calculus version will seem easier.)
Step-by-step explanation:
A straight line has an angle of 180
132+(2x+3)=180
2x+3=48
2x=45
x=45/2
PLEASE GIVE BRAINLY
Let C present amount of change
The expression is C = 50 - d
324 pounds
24% = 
= 0.24
0.24 × 1350 = 324 pounds
He should collect 324 more pounds of waste paper
