1. They are all round.
2.The kids got each other sick. They were contagious.
3. 15: 15, 30, 45
20: 20, 40, 60, 80
25: 25, 50, 75, 100
The multiples of five will either end in 0 or 5.
Answer:
3x-5y
Step-by-step explanation:
Combine like terms
ANSWER
One real root.
EXPLANATION
The graph of the function

is shown in the attachment.
According to the Fundamental Theorem of Algebra, this function must have 3 roots including real and complex roots.
The x-intercepts gives the number of real roots.
Observe that the graph has only one intercept.
This implies that, the equation:

has only one real solution.