If x= a/a-1 y=2a/2a+1 evaluate xy/x+y​

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?

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x