A theatre has the capacity to seat people accross two levels, the circle and the stalls. the ratio of the number of seats in the circle to the number of seats in the stalls is 2:5
Last friday the audience occupied all the 528 seats in the circle and 2/3 of the seats in the stalls.
work out the percentage of occupancy of the theatre last friday.
give your answer to 2 significant figures.
show working out.

Please help me with this question, finding it very hard,
thanks.

Which of the following statements are true? (select all that apply.) a quasi-static process is one in which the system is never far from being in equilibrium. when a system can go from state 1 to state 2 by several different processes, the amount of heat absorbed by the system will be the same for all processes. the internal energy of a given amount of an ideal gas depends only on its absolute temperature. when a system can go from state 1 to state 2 by several different processes, the work done on the system will be the same for all processes. when a system can go from state 1 to state 2 by several different processes, the change in the internal energy of the system will be the same for all processes. for any substance that expands when heated, its cp is greater than its cv.