The X (1) axis represents the number of hours, and the Y (75) axis represents the number of dollars. When 0 hours are passed, 0 hours are payed (0,0) 1 hour 75 dollars are payed (1, 75) 2 hours 150 dollars is payed (2, 150) and so on
Unless it was a restaurant for the king ..... i am going to assume your
200200 is 200
$1010 is $10
$5555 is $55
$78507850 is $7850
Let x be the number of $10 design set
$10 design set = x
$55 design set = 200 - x
10x + 55(200 - x) = 7850
10x + 11000 - 55x = 7850
55x - 10x = 11000 - 7850
45x = 3150
x = 70
200 - 70 = 130
70 of the $10 design and 130 of the $55 design
Because empty set has no element which automatically make it a subset of every set.
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(i^3)(i^4) = i^(3+4) = i^7
hope helepd
