I need help to find the answer to this

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

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a