There are 52 pens in 3 boxes. How many pens are in 12 boxes?

208 pens

Step-by-step explanation:

Lets make fractions with this information: 52/x = 3/12

Cross multiply: 52 * 12 = 3x

Multiply: 624 = 3x

Divide each side by 3: 208 = x, so 208 pens

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f is the midpoint of

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