Use two unit multipliers to convert 62 square centimeters to square inches

Step-by-step explanation:

You only need one, but to use two let's go from cm to mm an then mm to inches.  there are 100 mm^2 in a cm^2 so that's 100 mm^2/ 1 cm^2 and then there's  645.16 mm^2 in one square inch so that one will be 1 in^2/ 645.16 mm^2 so writing it out we get:

62 cm^2 * 100 mm^2/ 1 cm^2 *  1 in^2/ 645.16 mm^2

units all cancel out to get in^2 an then you just multiply 62*100/645.16 = 9.61 so that leaves us with 9.61 in^2.

Let me know if there's something you don't understand.  

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk