What is the radius of a hemisphere with a volume of 81449 ft ,to the nearest tenth of a foot

Which statement best describes the polynomial

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.

Write 17/20 as a decimal and as a percent.