Answer:
3m - 25
Step-by-step explanation:
3m - 25 will represent how many minutes she practiced this week:
3m represents 3 times the number of minutes she practiced last week. Then, subtract 25 from this.
This will represent 25 minutes less than 3 times the number of minutes she practiced last week.
Answer: Yes, it is 
Step-by-step explanation:
To simplify square roots, you can factor the number inside the square root into its lowest common denominators.

Any value that appears twice can be "taken out" of the square root and moved to the left of it:
,
What you are doing is essentially taking the square root of 4 and the square root of 3. Because the square root of 4 can be simplified, and the square root of 3 cannot, this is the most simplified version of the expression we can reach.
Answer:
2+2=4 thank you and can I get brainlest too