need help finding answers to these questions....

find the are length of the curve on the given interval X = t 2 , y= 16t, OC EL 8 find the eccentricity of the Polar equation 78 V = 26 + cos o 3) evaluate the Lim 9 e- 3 x x 4 *+ - 00 * 4 1 ) evaluate the Limit ( ex + 8x ) 7 using ciltospital rule If necessary find the area of the surface generated by revolving the come X = 3t , 4 = 50 about the x-axis on the interval Oct26