any of the 34 cars can finish first
any of the remaining 33 cars can finish second
any of the remaining 32 cars can finish third
Thus, the top 3 finishes can be done in (34)(33)(32) = 35904 ways
The interest earned in 5 years would be $270
<u>Explanation:</u>
Given:
Principal, P = $1800
Rate of interest, r = 3%
Time, t = 5 years
Simple interest, I = ?
We know,

On substituting the value we get

Therefore, interest earned in 5 years would be $270
I now how to do this, but I need a clearer picture. lol
Let the width =x
length = 6x
p=14x
28=14x
x=2