Answer:
Step-by-step explanation:
we know that
therefore
Answer: 242.08
299.04/ 42 =__ , __ 34= 242.08
The ratio of the radii is 2:1, so the ratio of their surface areas is 4:1. <span>The area of a sphere is defined by 4 * pi * r^2 </span>
<span>So if the radius of the first sphere is 2r, then it would be (2r)^2 = 4r^2 </span>
<span>The rest is the same. So the ratio of their surface areas would be </span>
<span>4 * pi * 4r^2 divided by </span>
<span>4 * pi * r^2 </span>
<span>or 4.</span>
≈ 30.43 , lmk if u need an explanation
By the seventh week you both will have $148. Hope this helps!
