Answer:
20.
Given, complex number is 10+5i .
We need to find sum of the given complex number and its conjugate. The conjugate of 10+5i is 10-5i. Therefore, the sum will be 10+5i+10−5i=20.
Yes it is congruent to5x-1
Answer:
5x
Step-by-step explanation:
If x is the number of waffle cones sold, the number of cake cones sold is five times that number, or 5x.