How to create an equation from lines on a graph, I NEED HELP ASAP AND PLEASE MAKE THE ANSWER SIMPLE IM ONLY 14 best answer gets 25 points

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?

If value of cos330° is √3/2 then find tan165°.

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe