Perform the following operations and write the answer in correct number of significant figures √25.4

Following the rules of significant figures simplify the expression 5.475 - 4.302

With a Vernier Caliper, you measure the length of a rectangular cardboard to be 17.32 cm. With a tape measure, you measure the width of this cardboard to be 12.0 cm. Determine the area of this cardboard using the appropriate number of significant figures.

Calculate the product of the following measurements while considering significant figures: 3.65 × 10³ cm multiplied by 2.4 × 10^-2 cm multiplied by 1.25 × 10^-6 cm.