70.4yd because 2 miles=3,520yd and if you divide 3520 by 50 you would get 70.4 therefore your answer is 70.4
First you would need to dive what you have of each ingredient by how much you need for 6 people.
Flour: 450 ÷ 150 = 3
Sugar: 380 ÷150 = 2
Cocoa: 300 ÷ 120 = 2.5
Eggs: 8 ÷ 3 = 2.7
then you look at the total batches each could make and average it to 2 batches. then multiply 6 by 2.
6×2= 12
so all together, the maximum amount of people you can make for is 12.
5√11 - 12√11 - 2√11 = (5 - 12 - 2)√11 = -9√11
I think this is what you mean.
(5 + 2) + 6 = 7 + 6 = 13
5 + (2 + 6) = 5 + 8 = 13
I hope this helps. :)