W(3) = expression on Abby's weight now
weight on first birthday (3) = weight now
Answer:
The answer is "99.82% and 86.99%".
Step-by-step explanation:
In point a:
In point b:

The key words here are <em>less than</em> and <em>3 times</em>. Knee pads are represented by the variable<em> k</em>, and 3 times that price would be 3<em>k</em>. Now, skateboards are $5 less than that price, so the expression that gives the price of a skateboard is 3<em>k</em> - $5.
I think the answer is C.
I’m not sure.
If I’m wrong I’m really sorry. Have a great day.