What is one way to find the total cost of a jacket for $55.80 with sales tax of 2.7%

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

If a || b and e || f , what if the value of y ?

Complete each sentence with the correct form of the verb ser or estar to say where the following people are from or where they are right now claudia y maria en méxico