Answer:

Step-by-step explanation:
The formula of a surface area of a sphere:

R - radius
We have

Substitute and solve for R:
<em>divide both sides by π</em>
<em>divide both sides by 4</em>

The formula of a volume of a sphere:

Substitute:

Answer:-5.93958251....
Step-by-step explanation:
Step 1. You must write down/ underline all the numbers given in the problem.
Step2. Identify all the unknown variable such as x, y, a, b [those are the most common ones].
Step 3 Identify what sign of operation your working with... It can be +,-,×,÷.
Step 3 write down all your terms on the LHS of the equation.
Step 4. Equate all the constant on the RHS of the equation. If the constant was negative It would be positive and vic versa
Step. Solve your problem
Two inequalities:
x > 5 (should be greater than 5 feet)
x < 30 (should be smaller than 30 feet)
One compound inequality: (more convenient inequality)
5 < x < 30
Robyn bakes 4 pies because if she has 8 total cups of flour and each pie needs 2 cups of flour then all you need to do its divide. Hope this made sense and helped.