The answer pls! I get confused on the congruence.

Myron put $5000 in a 2-year cd playing 3% interest, compounded monthly. after 2 years, he withrew all his money. what was the amount of the withdrawal?

Ingredient c: 1/4 cup for 2/3 serving or ingredient d: 1/3 cup for 3/4 serving which unit rate is smaller

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.