V=hpr^2, r=d/2 so
V=(hpd^2)/4
h=(4V)/(pd^2) ft given that d=4 and V=527.8
h=42ft

Square 12.1, and subtract 121 from both sides.

Complete the subtraction on the right side.

This is the solution.
I’m not sure this is a question and more of a statement?
1000 candy bars ... $350
1 candy bar ... $x = ?
If you would like to know what is the unit cost per candy bar, you can calculate this using the following steps:
1000 * x = 350 * 1
1000 * x = 350 /1000
x = 350 / 1000
x = $0.35
Result: She can buy 1 candy bar for $0.35, so the correct result would be B) $.35.
Y = 1/5x + 2
Slope-intercept form:
y = mx + b
First, you must get y alone by subtracting 2x on both sides of the equation and then dividing both sides by -10:
-10y = -2x - 20
y = -2/-10x - 20/-10
Simplify: y = 1/5x + 2