Which item below has the lowest cost per piece of pizza? A a 12 piece pizza for $13.00
B. an 8 piece pizza for $9.00
C. a 16 piece pizza for $18.75
D. a 6 piece pizza $7.50​

How do you answer this question? (step by step)

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?