1. In a parallelogram ABCD, three vertices are A(-3,1), B (2,4) and C(3,1). (a) Find the midpoint of the diagonal AC. (b) Find the coordinates of D. (c)the length of the diagonal AC (d) the perimeter of ABCD. 2. Find the area of A PQR where P (0,7), Q (5,-5) and R (10,7).​​

True or false? many triangular shapes can be circumscribed about a given circle

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

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