CU Company has current assets of $400,000 and current liabilities of $250,000. Describe the impact of below stated transactions on the current ratio of the company; (Show calculations as well)

a. New machinery is purchased for $50,000 cash.

b. Short term borrowing of $50,000 took place to offset increase in receivables of same amount.

c. Seasoned equity worth $100,000 was issued and amount was invested in business expansion.