Answer both for ( brain list, thanks, 5 star review)

You have $600,000 saved for retirement. your account earns 5.5% interest. how much, to the nearest dollar, will you be able to pull out each month, if you want to be able to take withdrawals for 20 years?

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120