There are 1,200 refrigerators numbered 1 to 1,200. Suppose you open all of the refrigerators and then close every other refrigerator. Then, for every third refrigerator, you close each opened refrigerator and open each closed refrigerator. You follow the same pattern for every fourth refrigerator, every fifth refrigerator, and so on up to every twelve hundredth refrigerator. Which refrigerators will be open when the process is complete? Describe the mathematics that is underlying this math problem in your answer.

a. is correct

any options?

step-by-step explanation:

$655.61 which is option c

step-by-step explanation:

price of house =   $146,000

initial rate = 3.5%

mortgaged paid in this = 3.5 % of $146,000

                                        =

                                        =$5110

the total years would be = 7

total mortgaged paid = 7 * $5110

                                      =$35770

remaining money = $146000-35770

                                =$110230

new mortgaged payment = 5 % of 110230

                                            =  

                                            =$655.61

c

step-by-step explanation: easy math