Which of the following lists of ordered pairs is a function? A. (1,7), (2,5), (3, 6), (4,1) B. (2,5), (3,8), (4, 11),(4, 12)
C. (0,4), (1, 2), (1,0), (2, 3)
D. (3,-2), (2, -1), (3, 4). (4,7)

Given: △abc, ab=15, bd=9 ad ⊥ bc , m∠c=30°. find: the perimeter of the triangle.

Match each expression with its simplified form.

This week, conrad will work 1 3/4 times longer than last week. giovanni will work 1 1/3 times longer than last week. sally will work 2/3 the number of hours she worked last week. match each employee's name to the number of hours he or she will work this week