Question 1042531
Let {{{ p(t) }}} = the population after year {{{ t }}}
{{{ p(t) = 17*4^t }}}
( note that the 1st year is year zero {{{ t = 0 }}} )
The 9th year is really year 8 in this formula
( 0 - 8 ) is 9 years
{{{ p(8) = 17*4^8 }}}
{{{ p(8) =  17*65536 }}}
{{{ p(8) = 1114112 }}}
The population will be 1,114,112 in the 9th year
Hope I got it