Joan and Kylie are shopping at the mall. Joan buys a pack of socks for $7. She also buys nine T-shirts, each marked at the same price. She spends a total of $79. Kylie buys a pack of water
balloons for $3. She also buys seven t-shirts, each marked at the same price. Kylie spends a
total of $59. Identify which equation represents Joan's purchases and which one represents
Kylie's purchase.

What is the average rate of change for this function for the interval from x=2 to x=4 ?

How many $20 bills do you need to have to make $280

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.