Answer:
Step-by-step explanation:
I'm assuming you're asking for the slope of the line that passes through the two given points. To find this, use the slope formula: 
.
Substitute the point coordinates into the formula.
The slope of the line is -7/8.
Step-by-step explanation:
the second one and the third one are similar shapes to i
(2,0)
(-6,0)
I just inserted the equation into a graphing calculator. Kinda lazy tonight :/
I'll do the first two to get you started
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Problem 1
A = 3 = starting value
B = 10 = ending value
C = percent change
C = [ (B - A)/A ] * 100%
C = [ (10-3)/3 ] * 100%
C = (7/3) * 100%
C = 2.3333333 * 100%
C = 233.33333%
C = 233.3%
The positive C value means we have a percent increase. If C was negative, then we'd have a percent decrease.
<h3>Answer: 233.3% increase</h3>
===============================================
Problem 2
A = 9 = start value
B = 20 = end value
C = percent change
C = [ (B - A)/A ] * 100%
C = [ (20-9)/9 ] * 100%
C = (11/9)*100%
C = 1.2222222222*100%
C = 122.22222222%
C = 122.2%
<h3>Answer: 122.2% increase</h3>
An expression is like an equation, but without an equal sign.
Therefore, you could say...
14 stones + 6 stones
or just...
14 + 6
