Can someone please help me out with 1-3 questions ill appreciate it so much

Abag of popcorn contains 483 calories and servers 3.5 people. how many calories are in each serving.

Which statement best describes a square? a. a special rectangle that has four right angles b. a special trapezoid that has four sides of equal length c. a special rectangle that has four sides of equal length d. a special trapezoid that has four right angles

(urgent ) use pi 3.14 to estimate the circumference of the circle to the nearest hundredth middle is 4in (urgent )