Astack of 60 identical books at the book store was 135 inches tall.

how thick was each book?

a.
2.25 inches

b.
6.75 inches

c.
7.5 inches

d.
22.5 inches

Aline passes through the point (2, -4) and has a slope of 0, what is the equation of the line? plz fast

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?