X+y=-4 slove for y. and graph

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.

You can find the constant of proportionality by finding the ratio of

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?