Step-by-step explanation:

Square both sides of the equation.


You can see that the function is graphed for every number x that is greater than or equal to zero.
So we write that the domain is

.
Answer:
he saved $25
Step-by-step explanation:
The answer is 25 because 15 multiplied by 5 is 75 and 5 multiplied by 5 is 25.
Answer:
30
Step-by-step explanation:
do 50 divided by 10 wich is 5 so ever 5 is 10 percent so the do 5 times 6 to get 30!