Armando graphed the relationship between temperature and elevation for several cities. The x
xx-coordinate is the elevation in meters and the the
y
yy-coordinate is the temperature in °C

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Eliza wants to make $10,000 from her investments. she finds an investment account that earns 4.5% interest. she decides to deposit $2,500 into an account. how much money will be in her account after 14 years?

Find two numbers if their sum is 91 and the ratio is 6: 7?