Math
posted by Sonya .
If I make a porch that is 60 feet in length, 50 feet wide and 4 inches deep, how do I calculate the area, perimeter, and surface area of the porch? Can I multiply feet and inches in the same equation?

Math 
Ms. Sue
No. You can change the feet to inches  or change 4 inches to 1/3 foot.
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