Define a variable, write an inequality, and solve ; ray had scores of 75, 82, 94, and 77 on his first four science test. what must he score on the next test to have an average of at least 85?

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

Plz a. s. a. p. the table shows the number of male and female contestants who did not win a prize. what is the probability that a randomly selected contestant won a prize, given that the contestant was female? write the probability as a percent. round to the neares tenth, if needed.

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.