Help please I've been stuck on this for 2 hours

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

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

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9