Use the following data for the next two problems $(1$ and $2)$:

Consider the following information for the C&B Castillo Company. Sales have rapidly increased

in $2017$ and the firm reported operating profits of $$80,000.$ Depreciation expenses were $$50,000$

and the company paid $$20,000$ in interest expense in $2017.$ The firm paid no taxes. Following are

the C&B Castillo Company's balance sheets for $2016$ and $2017.$

Problem $1$:

a$)$ Calculate Castillo's cash flow from operating activities for $2017.(12$ pts$)$

b$)$ Calculate Castillo's cash flow from investing activities for $2017.(4$ pts$)$

c$)$ Calculate Castillo's cash flow from financing activities for $2017.(6$ pts$)$

d$)$ Calculate the change in the cash position of Castillo's for $2017.(6$ pts$)$