The area of the room is :

and if the cost is 1.25 per square foot then the total cost will be:

is $340 dollars
For number 6, Tom's unit rate was 0.1254 per meter. Samma's unit rate 0.1299 per meter. So Samma had a faster unit rate by 0.0045.
For number 8:
$10.45 ÷ 5 = $2.90
So the unit rate is $2.90.
Hope this helps. :)
Answer:
x=-7
Step-by-step explanation:
add 4 to both sides. leaving you with x=-7
Use the distance formula for the 2 points and then halve the answer