Determine the increase or decrease in cash for Rinky Supply Company for last year, given the following information. (Assume no other changes occurred during the past year.)
Decrease in marketable securities = $25
Increase in accounts receivables = $50
Increase in notes payable = $30
Decrease in accounts payable = $20
Increase in accrued wages and taxes = $15
Increase in inventories = $35
Retained earnings = $ 5
a. -$50
b. +$40
c. -$30
d. +$20
e. -$10