Vicki has 50 inch roll of ribbon. she used 3 feet of the ribbon to wrap a gift. how many inches of ribbon does she have left?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

A. what is the area of the base? use complete sentences to explain your reasoning. b. what is the volume of the prism? use complete sentences to explain your reasoning.

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?