Write the equation of the line of best fit using the slope-intercept formula y = mx + b. Show all your work, including the points used to determine the slope and how the equation was determined.

The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?

Nine more than four times a number is the same as one less than twice the number. find the number?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?