Answer:
Every positive number has 2 square roots, one positive and another one is negative. Square root of 49 is ±7, because you can obtain 49 by multiplying two 7's or two (-7)'s.
Step-by-step explanation:
Question 3 is B
Question 4 is B
Get your materials ready
Estimate the time needed
Today,not tomorrow
These are the tips
The answer according to my work is C (2)
Idk and i dont care about this