Answer:
a
Step-by-step explanation:
<h2>218 = 49 + 169 = 7² + 13² </h2><h2><u>218 = 7² + 13²</u> </h2><h2> </h2><h2> </h2><h2> </h2><h2 />
The volumes of spheres are proportional to R³. So their 'R's
are proportional to ∛their volumes.
(729/ 27) = 27
∛27 = <u>exactly 3</u> . No rounding required.
The answer is 6x + 0.50x= 2.50
