Select the correct answer from each drop-down menu. Elena’s backyard is in the shape of a rectangle. She created a triangular-shaped flower bed (shown as the shaded region) to plant flowers in.

The area of the triangular flower bed is square feet. The area of her backyard that does not include the flower bed is square feet.

Classify each polynomial by its degree and by its number of terms.

Astudent simplified a rational expression as shown.

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?