Answer:
Step-by-step explanation:
Given the equation 
Step 1;
Expand the bracket at the right hand side of the equation to have:

Taking the reciprocal of both sides:

Answer:
-3.2, -3.4, -3.6, -3.8, -3.9
Step-by-step explanation:
<em>Hey there!</em>
<em />
Well rational numbers can be a decimal as long as it can be turned into a fraction, meaning 3.5 is a rational number.
So rational numbers between -3 and -4 are,
-3.2, -3.4, -3.6, -3.8, -3.9
<em>Hope this helps :)</em>
Answer:
c. $9
Step-by-step explanation:
$3.98 + $4.19 + $0.79 = $8.96
Round to the nearest whole number which would be 9