What is step 10 in this proof?

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?

What is the greater volume 72 quarts or 23 gallons

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17