Answer:
The answer is d.) 1,500centimeters
Step-by-step explanation:
Answer: 
Step-by-step explanation:

Subtract 20x

add 15

Combine like terms

Divide by -25 (NOTE: When dividing or multiplying by negative numbers the inequality sign flips.)

The larger number is 10 - x.
2(10 - x) - (-20)
20 - 2x + 20
40 - 2x
If f(x)=2x-1 just plug in the 3 where x is. So it would be 2(3)-1=5
Answer:

Step-by-step explanation:
The function that we have to study in this problem is

The domain of a function is defined as the set of all the possible values of x that the function can take.
For a square-root function, there are some limitations to the possible value of the argument in the root.
In particular, the argument of a square root must be equal or greater than zero, because the square root of a negative number is not defined.
Therefore, in this case, we have to set the following condition for the domain:

And by solving, we get

which means that the domain of this function is all real numbers equal or greater than 5.