A man bought some mangoes for $100. Had each mango cost $1 less, he could have bought 5 more mangoes. How many mangos did he buy.

Abbey purchased a house using a fixed rate mortgage. the annual interest rate is 4.2% compounded monthly for 20 years. the mortgage amount is $235,000. what is the monthly payment on the mortgage? this isn't a multiple choice question have to show my work

If you answer right ill give brainliest, : )

Which of the following is not a subset of {1,2,3}?