Last year, austin opened an investment account with $6800. at the end of the year, the amount in the account had increased by 6.5%. how much is the increase in dollars? how much was in his account at the end of last year?

Idk i am in 5th grade lol

Answer: the correct answer is 10step-by-step explanation: let the number be n, then the expression becomes,then“twelve more than the quotient of a number and two, decreased by four” iswhen n=4,we substitute 4 whetever we see n to get,we simplify to obtain,we further simplify to get,therefore the correct answer is c.