The graph below represents the solution set of which inequality?
a) x2–2x–8< 0
b) x2+2x–8< 0
c) x2–2x–8> 0
d) x2+2x–8> 0

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?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?