Can some one tell me what the geometric sequence of

2, 5, 12.5, 31.25 is? !

i will give

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Sketch one cycle if the cosine function y=2cos2theta

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)