Jonas has been saving for a video game . last year it costs $28 this year it costs $36 find the percent of change in the cost .

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

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n