Best Answer
999/7 is just over 142
100/7 is just over 14
so there are (142 - 14) = 128 numbers that are multiples of 7, hence there are 999-99-128 = 772 numbers that are not multiples of 7.
Its 15 boats bcuz...252+288=540 and 540/36= 15 boats :D
3n + 7 ><span> 4n
-3n -3n
7 > n
n</span> < 7
0.550×$60 = $33
$60- $33= $27.00
Therefore, the answer is $27