The total to be paid is 909.5.
You must do 7% of 850 which is 59.5 and add it to 850 which is 909.5
Parallel lines have the same slope! The slope measures how steep the line is, and parallel lines are equally steep.
It follows quite immediately that line 2 has also slope -1/2.
Five eights or 5/8 ( Hope This Helped)
12.5, 20, 22.5, 32 is the way from least to greatest. Hope this helps.