The difference between two numbers is 18. Twice the smaller number plus three times the larger is 74. What are the numbers?

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

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points