Simplify 4root 3x11y ×4root 27x-3y3​

Can someone me with this problem i don't understand i need

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')