Part 1 8.19 meters
11 * .305 = 3.355
8 * .305 = 2.44
3.354 + 2.44 = 8.19
it will cost $252 to cover it
you need 9 square meters to cover 8.19 meters of area
so 9 * 28 = 252
Step by step explanation
Cost of one hotdog =140/56=2.5
To find the number of hot dogs =total cost so the cost of one hotdog is =175/2.5=70
So the numbers of hot dogs he had to sell more of =70-56=14
300 millimeters=30 centimeters