! Explain, in words, how you would solve the following: If r(s) = 82 + 1 and t(s) = 3s – 2, what is the value of t(r (3))?

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.

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?

Me. i can't figure out this question. give an explanation too. .