Explain why ^3 √-8/27 = -2/3

^3 √-8/23 = -2/3 because x = -8/27

what is x?

Mindy bought 5/8 pound of almonds and a 3/4 pound of walnuts.which pair of fraction cannot be used to find how many pounds of nuts she bought in all.

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

What are the domain and range of the function f(x)=2^x+1