Express sun H as a fraction in simplest terms

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

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18

What is the circumference of a circle with an area of 50.24 cm²?