Answer:
Step-by-step explanation:
Combining like-terms gives us 
Hope this helped!
Answer: 30 i believe
Step-by-step explanation:
Answer:
$12
Step-by-step explanation:
60.00 meal
x 20percent tip
you convert the 20 percent to .20
so 60
x .20
------------
12.00
Answer: it is invalid
Step-by-step explanation: it is invalid because the data table has 30 out of 100 people stating that they prefer to view movies in theater. This does not have the same ratio as 300 out of 400, and would only work had he said 300 out of 1000. Thus, he is incorrect in his inference.
answer: you would just substitute all of the values you see for b into the equation where there's a b
