Answer:
57.4
Step-by-step explanation:
82.4 - 25 is too easy, a calculator can solve this.
Answer:
(-3,-1)
Step-by-step explanation:
Answer:
There is no real solution
Step-by-step explanation:
If you are finding the square root of a number, it cannot be negative. No number can be multiplied by itself to get a negative number. Negative numbers multiplied with themselves make a positive number. Positive numbers are obviously going to stay positive. Therefore there is no square root of -9
Answer:
91 hours
Step-by-step explanation:
Add 12 to itself 8 times and then add 7 once
Answer:
enlargement
Step-by-step explanation: