Question 1149027
<br>
The initial height is 8; the daily growth factor is 1+18% = 100%+18% = 118% = 1.18.<br>
(a) {{{f(t) = 8(1.18)^t}}}<br>
(b) # of days for the height to reach 27<br>
{{{27 = 8(1.18)^t}}}<br>
The variable is in an exponent; use logarithms.<br>
Or graph "8(1.18)^t" and "27" on a graphing calculator and see where the graphs intersect.<br>
(c) # of days for the height to reach 149<br>
Same as (b), just different numbers....<br>