Question

Erin has scanned a 4 × 5-inch postcard, and she wants to reduce it to make a graphic for her Web site. She will use a scale factor of 1 in. = 2 cm.

Answer 1

since im lazy im not going to do the work. an inch = 2.57 centimeters. so you have 1 inch - 2 centimeters yes? multiply it by two, and then multiply the inches. The answer would be 2 cm × 3 cm. Hope I helped.