I would estimate about 140 average lettuce.
8-10 heads of lettuce depending on how much lettuce you use
56020% of 2800= 20% * 2800= 0.20 * 2800= 560
7tonnes
That depends on how many hours you work during that month. It concerns me that you make $2800 per month yet dont know how to figure out how much that breaks down into hourly Your hourly pay = $2800/# of hours worked
It is: 0.15*2800 = 420
2800 x 365 = 1,022,000
Taco makers make 30 trillion dollars half a year
10% = 0.10 2800 x 0.10 = 280
As of January 13, 2011: 2800 EUR = 2317.84 GBP
I can usually get about 12 tacos from a pound of ground beef. More or less can be made depending on how much meat you put in each tortilla.
12-20 depending on how much meat you like
Lack of moisture can make lettuce bitter, but too little or too much of something (Nutrients) can also make lettuce bitter. Winter lettuce needs all the sun it can get.