Answer: -2 and 2
Step-by-step explanation:
we know that
<u>A rate</u> is a ratio that compares quantities in different units. <u>A unit rate</u> is a rate where the second quantity is one unit
so
In this problem to find the unit rate
Divide $ by
therefore
the answer is
the unit rate is equal to
Hope this helps if you need more info for a further explanation let me know