Answers created by Reg H.

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• Helium is pumped into a spherical balloon at a constant rate of 2 cubic feet per second. How fast is the radius increasing after 4 ​minutes? At what time​ (if any) is the radius increasing at a rate of 140 feet per​ second?
  
• Question #57453
  
• Question #a1d99
  
• How do you write the expression `root6(2)` in exponential form?
  
• How do you solve `\frac { 31} { b } = \frac { 124} { 208}`?
  
• Question #24f86
  
• A zebra starts from rest and accelerates at `1.9` `m``/s^2`. How far has the zebra gone after `5` seconds?
  
• Why the set of integers {...-3, -2,-1,0, 1, 2, 3..) is NOT "closed" for division?