Answer:


<h3>furthєr... </h3>
<h2>7¹¹ = 1977326743</h2>
<h2>———————————</h2>


<h2>———————————</h2>
hσpє hєlpful~
<h2>
~вє вrαínlч!</h2>
Kari got 36 donuts in total.
2/6 = 12/36 cake donuts
1/6 = 6/36 glazed donuts
3/6 = 18/36 frosted donuts
Kari got 12 cake donuts, 6 glazed donuts, and 18 frosted donuts. Hope this helps!

notice, the distance is the same, upstream or downstream, thus is "d" for both
solve for "r"
$4 each x 3 hats = $12 total
18-12= $6 left
$6 divided by 2 trains equals
$3 per train