Acylinder has a radius of 40 ft and a height of 17 ft. what is the exact surface area of the cylinder?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

Asap! i'm not good math and i'm lost.

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4