Extra points im terrible at math

a square has vertices at the points a(3,-3), b(-3,-3), c(-3,3), and d(3,3). what is the area of this square?

a. 30 square units
b. 48 square units
c. 40 square units
d. 36 square units

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online