Which rational function models the average annual cost, in dollars, of the refrigerator if it is kept for x years? The first option is the answer
Answer is option A

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

Are the corresponding angles congruent? explain why or why not.