HELP PLEASE Write an algebraic expression to model the unknown number situation. the sum of a number and one-third A 1-column table with 5 rows. Column 1 is labeled Addition Words with entries add, increase by, more than, sum, total. Which statements are true? Select all that apply. You can replace "a number" with a variable to represent an unknown value. You can replace "sum" with an addition sign. You can replace "sum" with an multiplication sign. You can replace "one-third" with One-third. The correct algebraic expression is One-third n.

What’s the domain of this function? fastttt

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

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.