The area of a square is its side length squared. So the side length of the square squared is 42, so the side length of the square is sqrt(42). The perimeter of the square is 4 times the side length, or 4sqrt(42), which is approximately 25.92.
Answer:
x≤0
Step-by-step explanation:
Answer:
keep calm and believe in yourself
7 because 7•3=21 and if he has as twice much as you 7•2=14 & 14+7=21 books together
