The average of x and t is y. If s = 2y, what is the average of s, x, and t in terms of y?
А. Зу
B. 2y
C. 5y/3
D. 4y/3
E. y

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?

For the sequence [tex]a_{n} = 2n/(n+1)[/tex], what is the value of [tex]a_{10}[/tex]