Answer:
11. X=76
Step-by-step explanation:
4x + 100 > 7x
100 > 3x i moved all the x's over to one side
100/3 > x
or just
x > 100/3
so they need to sell more than 33.33333... pizzas
No one makes a 1.3333... pizza as far as I know, so your answer might be 34.
Complex numbers emerge when you take the square root of a negative number, since the imaginary unit
is defined by the relation
, which implies 
The only option involving the square root of a negative number is the last one.
720% because 1/5 is 20% and 7 is 700% so you add