For the following wffs, indicate which variables are free and which are bound (you can use 'f' for free and 'b' for bound.) make sure you draw a vertical line underneath each variable with the letters 'f' or 'b' at the bottom of each vertical line.

(a) (x) (y) (z) ((fxy --> gxy) v (hxa --> hzbu))

(b) (z) (ex) (y) (axayzw v bxycuvz)

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?