Multiply $530.40 by 3/4. You get the equation

If you simplify this, you get the solution of $397.80
$397.80
Answer:
The Formula is 4 x Pi x Radius Squared . surface area of sphere = 4 x pi x radius x radius where "x" indicates multiplication and pi = approximately 3.141592654 4 * pi * r^2
Step-by-step explanation:
It could mean something with measurements
There are none. Absolute values are always positive