If you flip three fair coins, what is the probability that you’ll get heads on the first two flips and tails on the last flip

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

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)

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c