Discuss the types of field trips students in the program attend and why.

The correct answer to this open question is the following.

The types of field trips that students in the program attend are the ones related to the financial world and banking. They receive a full explanation about the work done by the bank, their important role in society and how these banks affect public finances. Students visit banks to get familiar with the basic operation of banks, the people that work there, the functions, and responsibilities they have.

i think that the answer is polishing peanuts

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69