Is {(1, 2), (7, 6), (3, 2), (1, 0), (5, 6)} a relation? why?

Carmen ayer en el mercado compro 3/4 kg de guayabas, 6/8 kg de peras, 1/2 kg de naranjas ¿cuantos kilogramos de fruta compro?

Find the interior angle of a regular polygon which has 6 sides

Find the unit rate. enter your answer as a mixed number. a fertilizer covers 2/3 square foot in 1/2 hour.