It would be five times as many planes so 12*5=60 planes
12.5% 80-70=10 then divide 10\80 to get .125 , then multiply by 100 to get 12.5%
If I am correct you should Subtract $10.99 from 50 then divide it by 20 to see how many shirts he can get.
Hope this helps!<span />
less than means subtract
quotient is division
nineteen less than the quotient of a number and fifteen
n/15 - 19
