If the length of a rectangle is doubled, and its width is multiplied by 4, the area of the rectangle is multiplied by —

Chemistry balance then what type of reaction are they i don't know why it keeps saying math when i put chem

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4