i meant to put 5,280
0.5 x 520 = 260
It is a length of 520 feet.
10 x 52 = 520 so 5 x 52 must be 260 (half of 520) so 15 x 52 = 520 + 260 = 780.
520
520
520
520
It is 520
If using a calculator type in 520 divided by 100 and multiplied by 15. Ans: 78 However if you are not using a calculator take 10% of 520, ans:52. Then half that, ans:26 and add the two together to get 78.
$520
520
520