The grocer’s sign above the walnuts reads “5 pounds for $8.” What is the unit rate of the walnuts, in dollars per pound?

How do i do this? i don’t understand

Describe the domain and range of y=2(3)^x-2+5

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