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103 x
x squared. for example, if you will substitute "4" from "x" then,x=4;x²=4²=16. the small 2 indicates that you will multiply the number by itself.
39 is XXXIX This represents X + X + X + IX = 10 + 10 + 10 + 9 = 39 The I before the larger value X indicates subtracting 1.
If that's 4t3, that indicates that t has been cubed, which is to say it represents t x t x t.
The Formula is 4 x Pi x Radius Squaredsurface area of sphere = 4 x pi x radius x radiuswhere "x" indicates multiplication and pi = approximately 3.1415926544 * pi * r^2