Find the value of given expression
anyone wanna play chess ?​

What is the value of x in the figure below? if necessary, round your answer to the nearest tenth of a unit. 12 d 4 b оа. 3.1 ов. 6.9 ос. 4 od. 12

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.