Use Double number line diagram to support answer. it takes me 30 minutes to walk 2 miles. How long will it take me to walk 7 miles. 105 minutes but how do I draw the double number line to support my answer

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

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.

Which of the following is the sum of 3 1/6 + 6 3/8?