9)
→ a wireless intercom system in marked down from $99 to $79.20. by what
percent is the intercom discounted?
i need this to be shown full work on my elementary class for points extra credit!

20 points + brainliest answer + my mom’s chocolate chip cookie ! subtract.

An object is accelerating at a constant rate. its velocity in feet per second as a function of time in seconds can be modeled by the linear function v(t) = 2.5t. what does the dependent variable represent for this function? a) acceleration b) distance c) slope d) velocity

You are installing new tile on an outside patio. the area (in square feet) of the rectangular patio can be represented by 8x squared +33x+4.