Joshua Quick made a deposit to his checking account and received $50 in cash. His deposit slip shows a total deposit of $90. If Joshua
deposited checks worth six times the value of the coins he deposited,
how much did he deposit in (a) coins and (b) checks?
Larry McCoy deposited three checks to his checking account. He
remembers that one of the checks was twice the amount of the
smallest check and the largest check was equal in amount to the sum
of the other two. If Larry received $50 in cash and had a total deposit
of $355, what was the amount of each of the three checks?
PLEASE HELP