9. Which of the following relations are functions? Choose all that apply. Assume that each different variable (2 points) has a different value.
0{(2,6).(8.a),(6.0). (,d))
{(c, e),(c, d).(0,5)}
O{(6,6).(c, d),(d, C),(0,a)}
{(a, b).(6,c).(0,2).(d, e)}

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

What is the relationship between all triangles that can be drawn given the same three angles