The number of people, n, who know a rumor can be modeled using the equation , where d is the number of days since Monday Explain why n(0)=20 . What does this represent in terms of the situation modeled?
What is the value of n(-2) ? What does this represent in terms of the situation modeled?

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.

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?

What is the equation of the line written in general form? 0-x+y-2-2 ox+y-2=0 02x+4-2=0