What is the sum of the proper factors of 132

9514 1404 393

  203

Step-by-step explanation:

The prime factorization is ...

  132 = 2·2·3·11

The exponents of these factors are 2, 1, 1, so the number of divisors is ...

  (2+1)(1+1)(1+1) = 12

Those divisors are ...

  1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132

The proper factors are all but the first and last of these. Their sum is ...

  2 +3 +4 +6 +11 +12 +22 +33 +44 +66 = 203

The sum of proper factors of 132 is 203.

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

correct answer:

a + bi