Find the real solutions of the equation by graphing. x^2 + 2x + 2 = 0

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be bale to prepare using the sauce?