Which shape does not contain any acute angles

What is the slope of the line shown below?

Two numbers have a sum of -19. one number is x. what expression represents the other number?

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm