Answer:
Q.D.E=(5+2i).(5-2i).i = (25-4i²)i = 25i-4i³
Step-by-step explanation:
The solution for this problem is 9.45
Answer:
482 scones.
Step-by-step explanation:
Given:
Cost of each scones = $1.50
Their current profits are $578.40 which is 80% of his total sales.
Question asked:
How many scones have they sold ?
Solution:
Let total number of scones sold = 
Cost of 1 scone = $1.50
Cost of
scones = $1.50
(Unitary method)
80% of his total sales = $578.40 (given)

Dividing both sides by 1.2

Thus, they have sold 482 scones.
Answer:
Step-by-step explanation:
The 2 lines are y=2x+12 (slope of 2 y-intercept at 12) and y=26 (line at y=26).
intersection= (7,26)
Answer:
About 5 pizzas
Step-by-step explanation: