Mr hower can buy a computer with a down payment of 510$ and 8 monthly payments of 35.75 if he pays cash for the computer the cost is 699.99$ how much will he save if he pays cash the computer instead of paying for it in monthly payments

Which statement best describes the polynomial

Pls me this is due today and i need i will make brainliest if you me answer correctly and i will report if you try to give me a dumb answer.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.