Suppose A and B are independent events. If P(A) = 0.4 and P(B) = 0.9 what is P(AnB)?

Consider the function y = f(x)=3^x the values of f(1/2) and f(1/4). rounded to the nearest hundredth, are__and__ respectively

Ineed with number 6 , explain how to get 1978

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)