You invest $90 now its worth $150 the new value is what percent of the original value

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

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)