You earn $45 how many cars did you wash

What is best way to getting answer for my exam is

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t