A bookstore sold 43 paperback and hardback books. Each paperback book cost $4.50 and each hardback book cost $12.00. If the bookstore made a total of $276 in sales for one day, how many paperback books did they sell

/is used for a fraction 1) if x = 2/3 and y = 3/4, what is the value of (x + y) (x/y) expressed as a common fraction? 2) what is the least positive integer greater than 1 that leaves a remainder of 1 when divided by each of 2, 3, 4, 5, 6, 7, 8, and 9? 3) the ponde family's powerjet pumps 420 gallons of water per hour. at this rate, how many gallons of water will it pump in 45 minutes? 4) kim's insurance company pays 80% of the cost of all prescription medication she purchases in a year beyond the first $250 worth of prescriptions. her prescriptions for this year cost a total of $570. how many dollars of this amounts will kim's insurance company pay?

Aportion of a line bounded by two points is defined as

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation