Find the rule of the function fºg and its domain and the rule of g ºf and its domain.

3. f(x) = 9/2-x

g(x) = sqrt. x

4. F(x) = x^3 + x^2 + 1
g(x) =2x

Which expression is equivalent to 2^4y^3

Simplify the expression. -2/5(10+15m-20n)

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.