Answer: πr^2
Step-by-step explanation:
π is pie which is about 3.14
but you need to find the radius and square it is multiply it by itself (Example radius = 2 so 2x2=4)
then multiply the radius squared by π(pie) which is 3.14 or use a calculator.
You would look at number after the thousandths place to go up or down 72,000.
That is correct I think it is
3x+2y=5.44
it's a two variable problem which can't be solved algebraically unless you are given the weight of one of the balls.