Answer:
y=75x
Step-by-step explanation:
Answer:
The equivalent expression is 
Step-by-step explanation:
Additional of complex numbers:
When we add complex numbers, we add both it's real parts and imaginary parts.
In this question:

The equivalent expression is 
The formula for surface area is SA=4pi(radius)^2
This means that 4SA=4pi(2r)^2
because 2^2=4
so multiply the first ball's surface area by 4
the answer is c
Answer: It is not continuous at x=3