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).​​

The system of equations graphed below has how many solutions?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

Iwill arward ! , i if bt ≅ eu , bu ≅ et , prove: ∠b ≅ ∠e. fill in the blanks: draw segment ut ≅ bt≅ bu ≅ △ubt ≅ △