A combination lock has 6 different numbers. If each number can only be used ONCE, how many different combinations are possible?

151200 ways

Step-by-step explanation:

Well assuming the numbers go from 0 to 9

we have

_ _ _ _ _ _ six spaces

in the first one can go one of the ten so the first one has 10 options

10*_ _ _ _ _

the second one has 9 options because we have used one alredy

and so on

10*9*8*7*6*5=151200

$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