Which option is right? The study of research methods provides you with the knowledge and skills you need:
A: To solve the problem
B: To improve the decision-making process
C: To understand the research of others
D: All?

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.

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?

If the diagram polygon abcd is a reflection across ef to make polygon a'b'c'd'.