What is the peremiter of DEFG

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?