$3.49 X .10 = .35
the discount is .35 or 35 cents
final cost
3.49-.35= $3.14
hope this helps
Lost in your love lost in your so 1-1=0 yeah
So to solve for r, you need to isolate the variable onto 1 side. To do that, divide both sides by 2 pi, and your answer will be 
Let's make the length L and the width w. So, here's what we know:
L = 2w + 10
Lw = 1500
Substitute L in as 2w + 10:
w(2w + 10) = 1500.
Simplify.
2w squared +10w = 1500
Make it a quadratic equation, w = 25 or -30. Since it can't be negative, w = 25.
1500/25 = 60.
Length = 60
Width = 25