Each side of a square is increased 3 inches. When this happens, the area is multiplied by 4. How many inches in the side of the original square?

Need on this one asap im almost done with this subject

Hundred and tens tables to make 430 in five different ways

The graph of the the function f(x) is given below. find [tex]\lim_{x \to 0\zero} f(x)[/tex] [tex]\lim_{x \to 1+\oneplus} f(x)[/tex] [tex]\lim_{x \to 0-\zeroneg} f(x)[/tex]