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.
Considering there is not much information my best guess would be 175-28x
20% off means you paid only 80% of the original price.
0.8x=40
x=40÷0.8=50
so the original price is 50
i really hope this helps!
−5 < a − 4 < 2
+4 +4
-1 < a < 6
Answer is B. The second one
