A pet store surveyed 161 people to gather information about the types of pets the own. 84 dogs, 67 birds , both 39. How many people own a dog or a bird or both?

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

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

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x