If the value of each penny continues as shown, how much more will George's penny be worth than Frank's at the end of year 7? (nearest dollar)
A) $340
B) $117
C) $91
D) $76

x(years) F(x) G(x)
0 50 20
1 75 30
2 100 45
3 125 67.5
4 150 101.25
5 175 157.88
6 200 227.82

F(X) equal fred G(X) equal George

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %