The answer for this question is 28-4x
Multiply by 100
0.63×100=63 and then add a percent sign to get 63%
1.29,31
2.42,47
3.81,69
4.50,36
5.7,16
6.26,30
7.15,23
8.28,34
midpoint of AB (M)=(1,4)=(x,y)
COOrdinates of A=(-3,-6)=(X1,Y1)
coordinates of B=?
using midpoint formula,
X=(X1+X2/2)
or,1=(-3+X2/2)
or,2=-3+X2
or,2+3=X2
5=X2
<h2> And</h2>
Y=(Y1+Y2/2)
or,4=(-6+Y2/2)
or,4×2=-6+Y2
or,8+6=Y2
14=Y2
so,co-ordinates of B are(5,14).
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If x is the price before a sale
x-0.15x=x-3
0.85x=x-3
3=0.15x
x=20
The original price is $20
