First you get "y" by itself. To do so you divide 2 on both sides.
y = 3/2x + 5
To write an equation of a line that is PARALLEL to this equation, the slopes have to be the SAME. So the slope is 3/2.
You then use the equation:
y = mx + b
SInce you know "m" you plug it in.
y = 3/2x + b
Now you need to find b. To do so you plug in the point (2, -5) into this equation.
-5 = 3/2(2) + b
-5 = 3 + b
-8 = b
Finally you plug in b and you get your new equation.
y = 3/2x - 8
the is just THIS ONE JIAN JUAN IS B
i dont really know but im guessing use ratios. like 4:total volunteers
or something like that
100/100 x 85/100x 23/100=
0.90 = 175% of the original price
X * 1.75 = 0.90
(0.90 / 175) * 100 = $0.51
Hope this helps! :)