Free max points just use them

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

Louis wants to carpet the rectangular floor of his basement the basement has an area of 864 square feet the width of the basement is 2/3 its length what is the length of lewis's basement

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.