Answer:

Step-by-step explanation:
Let
y ----> the total cost for renting the popcorn machine
x ----> the time in hours
we know that
The total cost of renting a popcorn machine for 6 hours is $48
so
using proportion
Find out the total cost for renting the popcorn machine for x hours

Is a linear direct variation
The constant of proportionality or slope is equal to

That means ----> the total cost is $8 per hour
Answer:
2(x+4)
Step-by-step explanation:
The answer would be 270 cookies would be needed to serve 90 students
<span>I think these are the answers. I think you copied a few of the questions wrong.
x ≥ −8
</span><span>t ≤ −13
</span><span>x ≤ 2
</span><span>d > 0
</span><span>no solution</span>