Select the correct answer.

What is the value of this expression when w = -5?
w2 + 3w − 11

A. -51
B. -36
C. -16
D. -1

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

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?

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.