I need help on a math problem. Could someone please help me out? I will mark them I Brainlest!

Which of the following is the rational exponent expression of 6 root f

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account