Help please i’m absolutely terrible at math and really need to raise my grade

—the graph shows how fast a strand of human hair grows. how many inches would the hair have grown in 5 months

Find the slope of the line y =8/9x + 1.

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