Irene thinks she has space for a 45-inch -wide bookcase. it turns out that she only has space for a 40-inch-wide bookcase. what the percent error in irene's measurements?

An entertainment firm offer serveral dj choices and light shows that range in price based on the rental time period. the djs cost between $219 and $369 per night and the light shows cost between $159 and $309 per night. if you are booking both a dj and a light show write a compound inequality that represents the possible total amount you would pay x