Petra wants to buy a skateboard. the skateboard deck usually costs $37.50, but it is on sale for 20% off.

part a. if the sales tax is 5.2% how much will petra pay for the skateboard deck in all? (i have this answer which is $12.3)

part b. if the selling price of $37.50 represents a 20% markup, will the store still make a profit after the 20% markdown? explain.

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.